1

Radio Show & Podcast Feedback / Re: Feedback on "Are we ready for the next Chernobyl?"

« on: 13/09/2018 08:59:25 »

I think that we are not ready for this. And anyway, we can not be ready for this anyway. It should be prevented that this would never happen in the future and will do everything possible to protect our future generation from the tragedy.

You appear to be using your posts to advertise your homework/essay writing business.
We’ve replaced your commercial link with our own so you won’t show on search engines.
Oh, and by the way, you are banned.

2

New Theories / Re: Tides is the result of the rotation of the Earth and whirlpools?

« on: 11/09/2018 10:41:07 »

Wo, give me time to respond to this, it deserves pointed criticism.

before you do, you might take the trouble to find out exactly what science does take into account when calculating tides - it's obvious it will surprise you, the list is a long one.

If Yusuf had produced ideas which accurately predict tides everyone would be interested in his ideas, but they don't. They predict an amplitude in square meters/second and a periodicity of less than 24hrs. Add to this his misunderstanding of the difference in behaviour of a rigid gyroscope and a liquid one, and his confusion of waves and currents, and we would be interested to see your defence of his model.

I have no doubt as to Yusuf's intelligence and his hard work and dedication to his model, but it has to align with reality.

3

Physics, Astronomy & Cosmology / Re: How much dust and debris lands on Earth from space each year?

« on: 04/09/2018 14:44:50 »

Conversely does the Earth ejaculate particulates into space?

Doesn’t exactly ejaculate, just creeps away. About 95,000 tonnes of hydrogen and 1,600 tones of helium escape Earth every year.

4

That CAN'T be true! / Re: Why do tides disappear in some places?

« on: 03/09/2018 11:39:58 »

1. Why the height of the tides in the White Sea is 100 times greater than in the Baltic Sea.
The height of the tides in the Baltic Sea is 10 cm, and in the White Sea 10 meters.
http://goo.gl/eYVTo6
http://tapemark.narod.ru/more/22.png
  2. The tidal current in the White and Baltic Sea, moves from the Atlantic Ocean. How.
a). The distance to the throat of the Baltic Sea is 10 km, to the throat of the White Sea 3000 km.
b). The flow from the throat of the White Sea moves from south to north, at a speed of 1 km per hour.

Please answer both questions?

Already answered:

The places where the tidal range is larger are generally where the tide is funneled into a bay or estuary.
Because the tidal bulge (dragged by the moon's gravity) enters the funnel and travels along it, the same volume of water is forced into a narrow passage and so it has to get deeper.

Why is that so hard for you to understand?

As you don’t seem interested in the answers, why should we bother?

5

Physiology & Medicine / Re: Honey against sugar: which sweetener should I use?

« on: 27/08/2018 09:41:29 »

Could the phlegm be a biofilm and if so, might BC have found the answer?

No, plegm works against biofilms in the trachea. You might find this interesting. http://sitn.hms.harvard.edu/flash/2018/mucus-keeps-us-healthy/

As I said, honey does sooth the throat, maybe it suppresses the biofilm and hence decreases need for phlegm. Did you take it neat? Most people dilute it which reduces any effectiveness. Have you tried ordinary honey? There is no doubt that honey is antibiotic, question is, is Manuka more so?

6

New Theories / Re: Is there a discrepancy with the equivalence principle?

« on: 26/08/2018 07:06:50 »

Thanks, the link works.
I’ll have a read later.

7

Physiology & Medicine / Re: Has anyone tried hypnosis for chronic pain relief?

« on: 18/08/2018 07:01:18 »

No, because there are risks that poorly implemeted hypnotic suggestions can have undesired effects. Also, chronic pain needs to be accurately diagnosed before deciding on a treatment.
There are some studies that show hypnosis will work for short term pain relief but I havent seen any sound studies that show it works long term.
Perhaps @chris has come across something.

8

New Theories / Re: On what theory was the Chinese calendar of the tides of 1100 formed

« on: 17/08/2018 18:21:56 »

Before Copernicus, Ptolemy was also more accurate.

He was certainly not more accurate than Copernicus, nor was he more accurate than modern physics. He did, however, acknowledge that the tides are the result of moon/sun influences.

Before the discovery of the theory of tides in the whole world there were ports and there were port managers who did not care what was going on in their port.
In any state you can find the old tide tables.

So show us the ones you are basing your statements on.

Can I ask you how often you use tide tables in order to test their accuracy?
I use them very regularly and use a calibrated depth sounder to check depths. I can assure you from observation that modern tide tables are very, very accurate.

9

New Theories / Re: On what theory was the Chinese calendar of the tides of 1100 formed

« on: 17/08/2018 11:29:33 »

Chinese astronomers of that time predicting the tides relied on intuition and experience.
And modern astronomers rely on virtual theories.
And the forecast of that time, I believe was more accurate.

What you believe is of little importance. Provide an example of a chinese tide table that can be compared to a modern one.
All users of modern tide tables will confirm that they are extremely accurate.

10

New Theories / Re: Who is the author of the theory of tidal resonance?

« on: 16/08/2018 09:15:08 »

Who can give a reference to the theory of tidal resonance.

See answer #2. Read it and try to understand it, then you will be able to find numerous references.

PS Hint: don’t try looking in any 1902 encyclopaedias

11

New Theories / Re: On what theory was the Chinese calendar of the tides of 1100 formed

« on: 16/08/2018 09:00:40 »

But I would guess it was based on the moon. 

You might think so, but the Chinese calendar was lunisolar - based on measurements of the phases of the moon, but also on the position of the sun in the sky. It’s not that unusual, ancient Babylonians, Greeks and Israelites all used a variant of this type of calendar.
There’s known to have been a lunisolar calendar in China since at least the Shang Dynasty, around the 14thC BC, but the Republic of China adopted the Western Gregorian calendar on 1st Jan 1912, as an attempt to break away from the authority of the emperor.
One interesting thing about the lunisolar is that is makes tides easier to predict 

12

Guest Book / Re: Introduce yourself and say hi.

« on: 03/08/2018 11:59:11 »

The only rules we have are those contained in our forum acceptable usage policy https://www.thenakedscientists.com/forum/index.php?topic=8535.msg99452#msg99452

Some key points:
we cannot, amongst other things, host material that is obscene, that constitutes harassment,  that promotes terrorism, that is racist, or that constitutes a breach of copyright.

Keep it family friendly, all ages view here

Be safe, we advise no personal data

No spam. That includes promoting your own business or pet theories:
- The site is not for the promotion of business interests, or other personal ventures.  The only exception to this is where the advertisement is supplied by the owners of the forum to further their own business interests.
-The site is not for evangelising your own pet theory.  It is perfectly acceptable that you should post your own theory up for discussion, but if all you want to do is promote your own idea and are not inviting critical debate about it, then that will not be acceptable.
- It is not acceptable simply to post material onto this forum that you have posted elsewhere, except where the post is specifically pertinent to an ongoing thread.  If you start a thread with a post that is for all practical purposes the same as you have posted elsewhere, we will generally assume that you are evangelising, and will act accordingly.

13

Physics, Astronomy & Cosmology / Re: Why do we have two high tides a day?

« on: 03/08/2018 08:30:24 »

Wouldn't they only bunch on the east coasts of the emerged lands if it was the case?

No, various reasons. Firstly the pull of the moon/sun system passes over (or the earth rotates from under, depending on how you view it) and releases the bulge so it can fall back. Secondly, the sloshing backwards and forwards can due to the distance result in a wave superposition that results in the waves performing a seesaw movement, a form of resonance.  Also the movement of the bulge isn’t straight across a basin west-east but Coriolis effect turns the movement to the right (northern hemisphere). For example in the English Channel when the bulge moves west to east you get slightly higher tides on the south (french) coast and then on the north (english) when it goes back east to west. Motion in a basin is more difficult to explain without pictures, but it results in a bulge that rotates counter clockwise around a null point - look up amphidromic circulation and dynamic theory of tides for details.   

If I understand well, the tidal wave would get amplified in a basin the same way a sound wave is amplified in a trumpet. If the trumpet or the basin is longer, the frequency is lower, and vice versa. It makes sense, but it's hard to imagine.

This only happens in some very specific places where the geology works to produce a resonance - look up Bay of Fundy where length of bay causes a resonance with 12 hr tides hitting the entrance.
In many other places eg Atlantic the bulge is amplified by the wave hitting shallow water of continental shelf just like waves on a beach increasing in ht as the water shallows. It is also amplified due to amphidromic effects as the further it is from the null point, the higher the bulge will be.
As David says, the geography is responsible for the specific local tides and these will deviate from the equilibrium 2 bulges/day eg Solent has a double peak high tide due to water entering first the west then the east entrance.

However, as David pointed out in an earlier post, I think this is moving away from the objectives of the OP which is to discuss the specifics of the moon/earth effects of the equilibrium theory and the terminology used.

14

Physics, Astronomy & Cosmology / Re: False Vacuum; Who, What, Where, When, Why?

« on: 24/07/2018 09:21:25 »

I like your analogy @Bill S
I would view the higher valleys as tarns - lakes cut off from lower areas. Interesting that these areas are considered to dissipate by quantum tunneling which is why they are unstable.

15

Famous Scientists, Doctors and Inventors / Re: Is this a great invention ?

« on: 23/07/2018 08:49:05 »

You could build a scale model as a proof of concept. It would need to be fairly large to give a good indication of workings.

16

Physiology & Medicine / Re: Is it possible to increase muscle mass by doing endurance training?

« on: 17/07/2018 08:01:21 »

You should be able to walk 3.5 to 4km within the hour even at a gentle pace. How long were you walking for?

Endurance exercise such as walking builds slow-twitch muscle fibres, these are not the ones that bodybuilders create for big muscles - they use progressive overloading by lifting heavy weights for only seconds at a time, to make their muscles grow. Aerobic exercise such as walking, running, and cycling builds slow-twitch muscle fibres and long, lean muscles.

Slow twitch are very vascular, meaning they have greater blood flow, which allows faster delivery of nutrients and removal of waste products and are excellent at using stored fat as fuel which means they can be very fatigue resistant.

17

Physics, Astronomy & Cosmology / Re: How real is (my understanding of) the Copenhagen Interpretation?

« on: 06/07/2018 08:43:46 »

I agree with @chiralSPO it is our attempt to rationalise the quantum world which gets us into trouble. We try to find mental hooks to hang ideas on so we say that because a wave’s energy can be counted in integer units and because it carries momentum it has particle properties (and we end up forgetting that other waves can carry momentum). We also talk about tunneling, but no one suggests that the particle/wave digs a little hole!
I view Copenhagen as a set of rules for using a methodology that gives amazingly accurate answers, but like most analogies and methodologies these rules can be overextended to give even greater confusion.

18

Physics, Astronomy & Cosmology / Re: How to read the pull force of a magnet?

« on: 29/06/2018 14:50:04 »

I think it is using inches. I put in 0.5 OD and 0.2 thick which is a C5 they sell and it returned 0.9lb which sounds reasonable.

19

Physics, Astronomy & Cosmology / Re: How to read the pull force of a magnet?

« on: 28/06/2018 23:05:48 »

I think (in this case) Kg is kilo Gauss rather than kilo grams.

Correct, Br is the remanence in milliTesla and kiloGauss

20

Physics, Astronomy & Cosmology / Re: How to read the pull force of a magnet?

« on: 28/06/2018 15:55:39 »

You can’t read pull strength from these charts, you will need to look at a specific magnet shape and size on a supplier website.
Y30 is a ferrite and won’t be very powerful eg 0.25 - 0.4kg could be less depending on configuration.