A-Z Of Anything Or Anyone Associated With SCIENCE !!

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Offline neilep

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Richard Phillips Feynman (pronounced /ˈfaɪnmən/ FYEN-mən; May 11, 1918 – February 15, 1988)

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........ was an American physicist known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the superfluidity of supercooled liquid helium, as well as in particle physics (he proposed the parton model). For his contributions to the development of quantum electrodynamics, Feynman, jointly with Julian Schwinger and Sin-Itiro Tomonaga, received the Nobel Prize in Physics in 1965. He developed a widely used pictorial representation scheme for the mathematical expressions governing the behavior of subatomic particles, which later became known as Feynman diagrams. During his lifetime and after his death, Feynman became one of the best-known scientists in the world.

He assisted in the development of the atomic bomb and was a member of the panel that investigated the Space Shuttle Challenger disaster. In addition to his work in theoretical physics, Feynman has been credited with pioneering the field of quantum computing,and introducing the concept of nanotechnology (creation of devices at the molecular scale). He held the Richard Chace Tolman professorship in theoretical physics at the California Institute of Technology.

Feynman was a keen popularizer of physics in both his books and lectures, notably a 1959 talk on top-down nanotechnology called There's Plenty of Room at the Bottom, and The Feynman Lectures on Physics. Feynman is also known for his semi-autobiographical books Surely You're Joking, Mr. Feynman! and What Do You Care What Other People Think?, and through books about him, such as Tuva or Bust! He was also known as a prankster, juggler, safecracker, and a proud amateur painter and bongo player. He was regarded as an eccentric and a free spirit. He liked to pursue multiple, seemingly unrelated, paths, such as biology, art, percussion, Maya hieroglyphs, and lock picking.

Feynman also had a deep interest in biology, and was a friend of the geneticist and microbiologist Esther Lederberg, who developed replica plating and discovered bacteriophage lambda. They had mutual friends in several other physicists who, after beginning their careers in nuclear research, moved for moral reasons into genetics—among them Leó Szilárd, Guido Pontecorvo, and Aaron Novick.


SOURCE WIKIPEDIA
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Offline Karen W.

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Woooooooeeeeeeee! He's a handsome fellow.LOL...

Gyroscope
Source:
From Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Gyroscope





A gyroscope is a device for measuring or maintaining orientation, based on the principles of conservation of angular momentum.[1] A mechanical gyroscope is essentially a spinning wheel or disk whose axle is free to take any orientation. This orientation changes much less in response to a given external torque than it would without the large angular momentum associated with the gyroscope's high rate of spin. Since external torque is minimized by mounting the device in gimbals, its orientation remains nearly fixed, regardless of any motion of the platform on which it is mounted. Solid state devices also exist, such as the ring laser gyroscope.

Applications of gyroscopes include navigation (INS) when magnetic compasses do not work (as in the Hubble telescope) or are not precise enough (as in ICBMs) or for the stabilization of flying vehicles like Radio-controlled helicopters or UAVs. Due to higher precision, gyroscopes are also used to maintain direction in tunnel mining [1].

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Offline vipinkumar

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it is very important knowledge
I am regular reader of it
      thanks

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Offline Karen W.

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HYDROGEN BOMB

http://www.answers.com/topic/hydrogen-bomb

n.
An explosive weapon of enormous destructive power caused by the fusion of the nuclei of various hydrogen isotopes in the formation of helium nuclei.


hydrogen bomb

 
Britannica Concise Encyclopedia

Weapon whose enormous explosive power is generated by the nuclear fusion of hydrogen isotopes. The high temperatures required for the fusion reaction are produced by detonating an atomic bomb (which draws its energy from nuclear fission). The bomb's explosion produces a blast that can destroy structures within a radius of several miles, an intense white light that can cause blindness, and heat fierce enough to set off firestorms. It also creates radioactive fallout that can poison living creatures and contaminate air, water, and soil. Hydrogen bombs, which may be thousands of times more powerful than atomic bombs, can be made small enough to fit in the warhead of a ballistic missile (see ICBM) or even in an artillery shell (see neutron bomb). Edward Teller and other U.S. scientists developed the first H-bomb and tested it at Enewetak atoll (Nov. 1, 1952). The Soviet Union first tested an H-bomb in 1953, followed by Britain (1957), China (1967), and France (1968). Most modern nuclear weapons employ both fusion and fission.

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Offline neilep

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Iridescence (also known as goniochromism) is generally known as the property of certain surfaces which appear to change colour as the angle of view changes. Iridescence is commonly seen in items such as soap bubbles, butterfly  wings, and sea shells.

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Beetle

[attachment=12283]
Clear Ice Crystal

[attachment=12285]
Soap Bubble



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Jacobus Henricus van 't Hoff (30 August 1852 – 1 March 1911)


...... was a Dutch physical and organic chemist and the first winner of the Nobel Prize in chemistry. He is best known for his discoveries in chemical kinetics, chemical equilibrium, osmotic pressure, and stereochemistry. Van 't Hoff's work in these subjects helped found the discipline of physical chemistry as it is today.


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Offline neilep

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Krypton  is a chemical element with the symbol Kr and atomic number 36. It is a member of Group 18 and Period 4 elements. A colourless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere, is isolated by fractionally distilling liquified air, and is often used with other rare gases in fluorescent lamps. Krypton is inert for most practical purposes.

Krypton, like the other noble gases, can be used in lighting and photography. Krypton light has a large number of spectral lines, and krypton's high light output in plasmas allows it to play an important role in many high-powered gas lasers, which pick out one of the many spectral lines to amplify. There is also a specific krypton fluoride laser. The high power and relative ease of operation of krypton discharge tubes caused (from 1960 to 1983) the official meter to be defined in terms of the orange spectral line of krypton-86.

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Colourless gas, exhibiting a whitish glow when placed in a high voltage electric field
& Spectral lines of Krypton


SOURCE: WIKIPEDIA
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Offline neilep

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THIS THREAD IS FOR EVERYONE TO CONTRIBUTE TO BY THE WAY !!....JUST KEEP IT SCIENCE BASED AND IN ALPHABETICAL ORDER !!...which is nice !!
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Offline neilep

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Leachate is any liquid that, in passing through matter, extracts solutes, suspended solids or any other component of the material through which it has passed.
Leachate is a widely used term in the Environmental sciences where it has the specific meaning of a liquid that has dissolved or entrained environmentally harmful substances which may then enter the environment. It is most commonly used in the context of land-filling of putrescible or industrial waste.
In the narrow environmental context leachate is therefore any liquid material that drains from land or stockpiled material and contains significantly elevated concentrations of undesirable material derived from the material that it has passed through.


A leachate evaporation pond in a landfill site located in Cancun, Mexico.

SOURCE: WIKIPEDIA
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Offline CZARCAR

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M for the moron who realized he was a moron & thereby concluded his knowledge was limited & reconsidered..........marrying a Monkey

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M for the moron who realized he was a moron & thereby concluded his knowledge was limited & reconsidered..........marrying a Monkey


Perhaps he was a Neanderthal


The Neanderthal (short for Neanderthal man; sometimes spelled Neandertal) is an extinct member of the Homo genus known from Pleistocene specimens found in Europe and parts of western and central Asia. Neanderthals are classified either as a subspecies (or race) of modern humans (Homo sapiens neanderthalensis) or as a separate human species (Homo neanderthalensis).

The first proto-Neanderthal traits appeared in Europe as early as 600,000–350,000 years ago. Proto-Neanderthal traits are occasionally grouped with another phenetic 'species', Homo heidelbergensis, or a migrant form, Homo rhodesiensis.


Source WIKIPEDIA
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Offline CZARCAR

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ORO= gold in Spanish...as the value increases, MORONS will burn oil+ fuels to mine it & lock in a vault & these aint Neandarthals so whats the word?

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Pulsar





A pulsar (portmanteau of pulsating star) is a highly magnetized, rotating neutron star that emits a beam of electromagnetic radiation. The radiation can only be observed when the beam of emission is pointing towards the Earth. This is called the lighthouse effect and gives rise to the pulsed nature that gives pulsars their name. Because neutron stars are very dense objects, the rotation period and thus the interval between observed pulses is very regular. For some pulsars, the regularity of pulsation is as precise as an atomic clock. The observed periods of their pulses range from 1.4 milliseconds to 8.5 seconds. A few pulsars are known to have planets orbiting them, such as PSR B1257+12. Werner Becker of the Max Planck Institute for Extraterrestrial Physics said in 2006, "The theory of how pulsars emit their radiation is still in its infancy, even after nearly forty years of work."

Source WIKIPEDIA
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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #213 on: 25/08/2012 19:10:46 »
Quark epoch
From Wikipedia, the free encyclopedia

In physical cosmology the quark epoch was the period in the evolution of the early universe when the fundamental interactions of gravitation, electromagnetism, the strong interaction and the weak interaction had taken their present forms, but the temperature of the universe was still too high to allow quarks to bind together to form hadrons. The quark epoch began approximately 10−12 seconds after the Big Bang, when the preceding electroweak epoch ended as the electroweak interaction separated into the weak interaction and electromagnetism. During the quark epoch the universe was filled with a dense, hot quark-gluon plasma, containing quarks, leptons and their antiparticles. Collisions between particles were too energetic to allow quarks to combine into mesons or baryons. The quark epoch ended when the universe was about 10−6 seconds old, when the average energy of particle interactions had fallen below the binding energy of hadrons. The following period, when quarks became confined within hadrons, is known as the hadron epoch.

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #214 on: 26/08/2012 17:44:46 »
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Radium is a chemical element with symbol Ra and atomic number 88. Radium is an almost pure-white alkaline earth metal, but it readily oxidizes on exposure to air, becoming black in color. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226, which has a half-life of 1601 years and decays into radon gas. Because of such instability, radium is luminescent, glowing a faint blue.
Radium, in the form of radium chloride, was discovered by Marie Skłodowska-Curie and Pierre Curie in 1898. They extracted the radium compound from uraninite and published the discovery at the French Academy of Sciences five days later. Radium was isolated in its metallic state by Marie Curie and André-Louis Debierne through the electrolysis of radium chloride in 1910. Since its discovery, it has given names like radium A and radium C2 to several isotopes of other elements that are decay products of radium-226.
In nature, radium is found in uranium ores in trace amounts as small as a seventh of a gram per ton of uraninite. Radium is not necessary for living organisms, and adverse health effects are likely when it is incorporated into biochemical processes because of its radioactivity and chemical reactivity.


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Offline Karen W.

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #215 on: 26/08/2012 22:26:04 »
SYNDROME= pathol psychiatry,  a group of symptoms that together are characteristic of a specific disorder, disease,or the like.

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #216 on: 05/09/2012 21:35:34 »
Telstar is the name of various communications satellites. The first two Telstar satellites were experimental and nearly identical. Telstar 1 was launched on top of a Thor-Delta rocket on July 10, 1962. It successfully relayed through space the first television pictures, telephone calls, fax images and provided the first live transatlantic television feed. Telstar 2 was launched May 7, 1963. Telstar 1 and 2, though no longer functional, are still in orbit as of July 2012.


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SOURCE: WIKIPEDIA
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Offline CliffordK

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #217 on: 06/09/2012 04:39:15 »
Uranium
is the 92nd element in the periodic table, conveniently abbreviated with the letter U.

Common naturally occurring isotopes include:

238U 99.3% of all naturally occurring Uranium with a half life of 4.46 billion years
235U 0.7% of all naturally occurring Uranium with a half life of 700 million years.
234U 0.006% of all naturally occurring Uranium with a half life of 248 thousand years.

Uranium is the primary fuel for nuclear reactors around the world.  And, was the explosive in the Little Boy bomb dropped on Hiroshima.


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Offline Lmnre

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #218 on: 08/09/2012 23:11:18 »
After Uranium comes "EUreka!", which is what Archimedes shouted when he realized that he was sitting in, and being measured by, ...








source
... a Volumeter, an instrument for measuring the volumes of something by the amount of gas or liquid it displaces. source

Help! I've broken the page. How do I fix it? Please send me a message on what to do.
« Last Edit: 08/09/2012 23:15:07 by Lmnre »

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Offline CliffordK

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #219 on: 09/09/2012 00:12:18 »
W

For Tungsten

[:o]

The 74th element on the periodic table, and one of the highest melting point metals with a melting point of 3695 K, 3422 °C, 6192 °F.  It is used in tungsten carbide to form extremely hard tips for blades and drills.  It is used for high temperature heating elements for kilns, as well as filaments for incandescent light bulbs.  It is also used as electrodes for TIG welding.

Tungsten Carbide has also been used in jewelry.

« Last Edit: 09/09/2012 00:14:52 by CliffordK »

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Offline damocles

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #220 on: 09/09/2012 00:51:13 »
X

for X-ray

Mysterious radiation discovered in the 1890s -- 'x' for unknown.

Quite apart from well known medical applications, x-rays provided an experimental tool that led Moseley in 1913 to the discovery of Atomic Number, and resolved a few anomalies in the Periodic Law to set it on a revised, and much firmer footing.

http://web.lemoyne.edu/~giunta/Moseley-article.html
« Last Edit: 09/09/2012 01:37:15 by damocles »
1 4 6 4 1
4 4 9 4 4     
a perfect perfect square square
6 9 6 9 6
4 4 9 4 4
1 4 6 4 1

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #221 on: 09/09/2012 01:03:05 »
Y

for Ytterby

The "complete village" near Stockholm that provided the raw material for the discovery of many new elements, and the names of four of them

Y -- yttrium
Yb -- ytterbium
Tb -- terbium
Er -- erbium

Even Paris does not have such a distinction!
1 4 6 4 1
4 4 9 4 4     
a perfect perfect square square
6 9 6 9 6
4 4 9 4 4
1 4 6 4 1

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« Reply #222 on: 10/09/2012 01:37:24 »
Zero-point energy


Zero-point energy is the lowest possible energy that a quantum mechanical physical system may have; it is the energy of its ground state. All quantum mechanical systems undergo fluctuations even in their ground state and have an associated zero-point energy, a consequence of their wave-like nature. The uncertainty principle requires every physical system to have a zero-point energy greater than the minimum of its classical potential well, even at absolute zero. For example, liquid helium does not freeze under atmospheric pressure at any temperature because of its zero-point energy.
The concept of zero-point energy was developed in Germany by Albert Einstein and Otto Stern in 1913, using a formula developed by Max Planck in 1900. The term zero-point energy originates from the German Nullpunktsenergie. The German name is also spelled Nullpunktenergie (without the "s").
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« Reply #223 on: 10/09/2012 01:44:19 »
Architectural Acoustics is the science of noise control within buildings.

[attachment=16865]

 The first application of architectural acoustics was in the design of opera houses and then concert halls. More widely, noise suppression is critical in the design of multi-unit dwellings and business premises that generate significant noise, including music venues like bars. The more mundane design of workplaces has implications for noise health effects. Architectural acoustics includes room acoustics, the design of recording and broadcast studios, home theaters, and listening rooms for media playback.





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« Reply #224 on: 24/12/2012 21:15:20 »
Backronym


From Wikipedia, the free encyclopedia


A bacronym or backronym is a phrase specially constructed so that an acronym fits an existing word. For example, NASA's "Combined Operational Load-Bearing External Resistance Treadmill (COLBERT)" was given that name in recognition of comedian Stephen Colbert's attempts to have a space module named for him. Backronyms may be invented with serious or humorous intent, or may be a type of false or folk etymology.
The word is a combination of backward and acronym, and has been defined as a "reverse acronym". Its earliest known citation in print is as "bacronym" in the November 1983 edition of the Washington Post monthly neologism contest. The newspaper quoted winning reader "Meredith G. Williams of Potomac" defining it as the "same as an acronym, except that the words were chosen to fit the letters"
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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #225 on: 26/12/2012 05:44:01 »
Carbon

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Carbon (from Latin: carbo "coal") is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. There are three naturally occurring isotopes, with 12C and 13C being stable, while 14C is radioactive, decaying with a half-life of about 5,730 years. Carbon is one of the few elements known since antiquity.
There are several allotropes of carbon of which the best known are graphite, diamond, and amorphous carbon.The physical properties of carbon vary widely with the allotropic form. For example, diamond is highly transparent, while graphite is opaque and black. Diamond is the hardest naturally-occurring material known, while graphite is soft enough to form a streak on paper (hence its name, from the Greek word "to write"). Diamond has a very low electrical conductivity, while graphite is a very good conductor. Under normal conditions, diamond, carbon nanotube and graphene have the highest thermal conductivities of all known materials.
All carbon allotropes are solids under normal conditions with graphite being the most thermodynamically stable form. They are chemically resistant and require high temperature to react even with oxygen. The most common oxidation state of carbon in inorganic compounds is +4, while +2 is found in carbon monoxide and other transition metal carbonyl complexes. The largest sources of inorganic carbon are limestones, dolomites and carbon dioxide, but significant quantities occur in organic deposits of coal, peat, oil and methane clathrates. Carbon forms more compounds than any other element, with almost ten million pure organic compounds described to date, which in turn are a tiny fraction of such compounds that are theoretically possible under standard conditions.
Carbon is the 15th most abundant element in the Earth's crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. It is present in all known life forms, and in the human body carbon is the second most abundant element by mass (about 18.5%) after oxygen. This abundance, together with the unique diversity of organic compounds and their unusual polymer-forming ability at the temperatures commonly encountered on Earth, make this element the chemical basis of all known life.



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Offline CamKrist

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #226 on: 17/01/2013 15:34:31 »
Similar subject was being discussed at yahoo answers last week. I can post the link if needed.

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #227 on: 05/04/2013 07:26:38 »
Thanks for this valuable information...

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Offline Karen W.

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« Reply #228 on: 06/08/2014 19:14:08 »


               D
                                                         
                               DIATOMACEOUS EARTH

   
                                                 
                                  A sample of food-grade diatomaceous earth

Diatomaceous earth/ˌdaɪ.ətəˌmeɪʃəs ˈɜrθ/, also known as D.E.,diatomite, orkieselgur/kieselguhr,
is a naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to
off-white powder. It has a particle size ranging from less than 3 micrometers to more than 1 millimeter,
but typically 10 to 200 micrometers. Depending on the granularity, this powder can have an abrasive
feel, similar to pumice powder, and has a low density as a result of its high porosity. The typical chemical
composition of oven-dried Diatomaceous earth is 80 to 90% silica, with 2 to 4% alumina (attributed
mostly to clay minerals) and 0.5 to 2% iron oxide.[1]

Diatomaceous earth consists of fossilized remains of diatoms, a type of hard-shelled algae. It is
used as a filtration aid, mild abrasive in products including toothpaste, mechanical insecticide,
absorbent for liquids, matting agent for coatings, reinforcing filler in plastics and rubber, anti-block
in plastic films, porous support for chemical catalysts,cat litter, activator in blood clotting studies,
a stabilizing component of dynamite, and a thermal insulator.


                   http://en.m.wikipedia.org/wiki/Diatomaceous_earth

                               

   
« Last Edit: 06/08/2014 19:22:46 by Karen W. »

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Offline Sheppie

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #229 on: 14/08/2014 13:47:37 »
Actinides

" For many years, the list of chemical elements known to scientists ended with number 92, uranium. Scientists were uncertain as to whether elements heavier than uranium would ever be found. Then, in 1940, a remarkable discovery was made while University of California physicists Edwin McMillan (1907–1991) and Philip Abelson (1913– ) were studying nuclear fission. (Nuclear fission is the splitting of an atomic nucleus, a process that releases large amounts of energy. Atomic bombs and nuclear power plants operate on nuclear fission.) During their research, the duo found evidence for the existence of a new element with atomic number 94, two greater than that of uranium.

This new element was the first transuranium (heaver than uranium) element ever discovered. McMillan and Abelson named it neptunium, after the planet Neptune, just as uranium had been named after the planet Uranus. Later in the same year, McMillan and two other colleagues found a second transuranium element, which they named plutonium, after the planet Pluto.

At that point, the race was on to develop more synthetic transuranium elements, but the research process was not easy. The approach was to fire subatomic particles or small atoms, like those of helium, at a very large nucleus by means of a particle accelerator. If the smaller particle could be made to merge with the larger nucleus, a new atom would be produced. Over time, techniques became more and more sophisticated, and ever-heavier elements were created: americium (number 95) and curium (number 96) in 1944; berkelium (number 97) in 1949; californium (number 98) in 1950; einsteinium (number 99) and fermium (number 100) in 1952; mendelevium (number 101) in 1955; nobelium (number 102) in 1958; and lawrencium (number 103) in 1961."

Read more: http://www.scienceclarified.com/A-Al/Actinides.html#ixzz3AN2PwzU6

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Offline Karen W.

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #230 on: 15/08/2014 19:39:18 »
Sheppie..the letter to you was
"E"...lol....Remember Alphabetical order....

"C"= Carbon

"D" = Diatomaceous Earth

Then you respond with the word starting with "E"...not "A"....
« Last Edit: 15/08/2014 19:48:43 by Karen W. »

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Offline hussen

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« Reply #231 on: 11/09/2014 07:48:17 »
thank u very much for this nice topic........it is a very benefitial data

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #232 on: 27/11/2014 09:23:59 »
This thread is: A-Z of anything or anyone associated with science. So if you wish to post in this thread it is done in alphabbetical order so the next science related word should start with an  "E"..ok?

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Offline Radium

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #233 on: 20/07/2015 20:34:53 »
B: Bismuth

Quote
Bismuth, which has been known since ancient times, was often confused with lead and tin. Bismuth was first shown to be a distinct element in 1753 by Claude Geoffroy the Younger. Bismuth does occur free in nature and in such minerals as bismuthinite (Bi2S3) and bismite (Bi2O3). The largest deposits of bismuth are found in Bolivia, although bismuth is usually obtained as a by-product of mining and refining lead, copper, tin, silver and gold.

Pure bismuth is a white, brittle metal with a slight pink color. Bismuth is usually mixed with other metals, such as lead, tin, iron or cadmium to form low-melting alloys. These alloys are used in such things as automatic fire sprinkler systems, fire detection systems and electrical fuses.

Bismuth oxide (Bi2O3), a bismuth compound, is used as a yellow pigment in paints and cosmetics. Bismuth oxychloride (BiOCl) is used to make a pigment known as bismuth white. Bismuth carbonate (Bi2(CO3)3) is used to treat diarrhea and gastric ulcers.

Once thought to be the heaviest stable isotope to exist in nature, experiments conducted in 2002 showed that bismuth-209 is unstable and decays into thallium-205 through alpha decay. Bismuth-209 has a half-life of roughly 19,000,000,000,000,000,000 years.

Source: http://education.jlab.org/itselemental/ele083.html
Radium is a chemical element with symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals.

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Offline neilep

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #234 on: 06/05/2016 20:19:52 »
C


Cepheid Variables

...............are very large, luminous, yellow stars. They change in brightness very regularly with periods of 1 to 70 days between peaks. The stars are called Cepheids after the first star of this type to be discovered - Delta Cephei. This is a reasonably bright star in the constellation of Cepheus
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Offline JimBob

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #235 on: 26/06/2016 03:43:09 »
D


Dike

NO! not the usual common association

IT IS: A tabular igneous intrusion that cuts across the surrounding rock.

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« Last Edit: 26/06/2016 05:16:07 by JimBob »
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Offline Karen W.

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #236 on: 26/06/2016 11:01:06 »
E

EUPHORIA

A very heightened state of joy and happiness.

GOOGLE

"eu·pho·ri·a
yo͞oˈfôrēə/Submit
noun
a feeling or state of intense excitement and happiness.
"the euphoria of success will fuel your desire to continue training"
synonyms:   elation, happiness, joy, delight, glee;"







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Offline neilep

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #237 on: 20/09/2016 20:15:50 »
Michael Faraday


Michael Faraday (22 September 1791 – 25 August 1867) was an English scientist who contributed to the study of electromagnetism and electrochemistry. His main discoveries include the principles underlying electromagnetic induction, diamagnetism and electrolysis.

Although Faraday received little formal education, he was one of the most influential scientists in history. It was by his research on the magnetic field around a conductor carrying a direct current that Faraday established the basis for the concept of the electromagnetic field in physics. Faraday also established that magnetism could affect rays of light and that there was an underlying relationship between the two phenomena. He similarly discovered the principles of electromagnetic induction and diamagnetism, and the laws of electrolysis. His inventions of electromagnetic rotary devices formed the foundation of electric motor technology, and it was largely due to his efforts that electricity became practical for use in technology.

As a chemist, Faraday discovered benzene, investigated the clathrate hydrate of chlorine, invented an early form of the Bunsen burner and the system of oxidation numbers, and popularised terminology such as "anode", "cathode", "electrode" and "ion". Faraday ultimately became the first and foremost Fullerian Professor of Chemistry at the Royal Institution of Great Britain, a lifetime position.

Faraday was an excellent experimentalist who conveyed his ideas in clear and simple language; his mathematical abilities, however, did not extend as far as trigonometry and were limited to the simplest algebra. James Clerk Maxwell took the work of Faraday and others and summarized it in a set of equations which is accepted as the basis of all modern theories of electromagnetic phenomena. On Faraday's uses of lines of force, Maxwell wrote that they show Faraday "to have been in reality a mathematician of a very high order – one from whom the mathematicians of the future may derive valuable and fertile methods."[3] The SI unit of capacitance is named in his honour: the farad.

Albert Einstein kept a picture of Faraday on his study wall, alongside pictures of Isaac Newton and James Clerk Maxwell. Physicist Ernest Rutherford stated, "When we consider the magnitude and extent of his discoveries and their influence on the progress of science and of industry, there is no honour too great to pay to the memory of Faraday, one of the greatest scientific discoverers of all time."



credit: Wikipedia



« Last Edit: 20/09/2016 20:19:20 by neilep »
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Offline Karen W.

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Re: A-Z Of Anything Or Anyone Associated With SCIENCE !!
« Reply #238 on: 23/09/2016 11:52:01 »
     Credit:       https://en.m.wikipedia.org/wiki/Gyroscope


                                     GYROSCOPE


A gyroscope in operation. Note the freedom of rotation in all three axes. The rotor will maintain its spin axis direction regardless of the orientation of the outer frame.
A gyroscope (from Greek γῦρος gûros, "circle" and σκοπέω skopéō, "to look") is a spinning wheel or disc in which the axis of rotation is free to assume any orientation by itself. When rotating, the orientation of this axis is unaffected by tilting or rotation of the mounting, according to the conservation of angular momentum. Because of this, gyroscopes are useful for measuring or maintaining orientation.[1][2]

Gyroscopes based on other operating principles also exist, such as the electronic, microchip-packaged MEMS gyroscopes found in consumer electronics devices, solid-state ring lasers, fibre optic gyroscopes, and the extremely sensitive quantum gyroscope.[citation needed]

Applications of gyroscopes include inertial navigation systems where magnetic compasses would not work (as in the Hubble telescope) or would not be precise enough (as in intercontinental ballistic missiles), or for the stabilization of flying vehicles like radio-controlled helicopters or unmanned aerial vehicles, and recreational boats and commercial ships. Due to their precision, gyroscopes are also used in gyrotheodolites to maintain direction in tunnel mining.[3] Gyroscopes can be used to construct gyrocompasses, which complement or replace magnetic compasses (in ships, aircraft and spacecraft, vehicles in general), to assist in stability (Hubble Space Telescope, bicycles, motorcycles, and ships) or be used as part of an inertial guidance system.
« Last Edit: 23/09/2016 12:20:13 by Karen W. »

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