1

Science Experiments / Finally created my Perpetual Motion Machine

« on: 02/12/2018 17:51:50 »

Been a while since I posted here guys but i've worked really hard on this and finally solved it:

Put my idea on New Theories

https://www.thenakedscientists.com/forum/index.php?topic=32581.0

2

Physics, Astronomy & Cosmology / Could a black hole exist between Mercury and the Sun?

« on: 05/11/2017 18:34:19 »

And disprove Einstein?

I've a maths 'O Level' just curious like

3

General Science / What has the biggest effect on drying clothes?

« on: 16/10/2017 11:43:14 »

I'm sure evapouration is the reason why clothes dry on the line but what has the biggest effect in drying clothes? Is it wind, the Sun, humidity or temperature? or something else?

4

The Environment / Is the Earth a closed microsystem?

« on: 17/11/2013 12:28:55 »

Humans can survive in Space but can we really live there?

All life seems to depend on other life. Bacteria in our gut for instance digest our food and in turn keep us alive. Start removing links in the food chain and things start to go wrong.

There's a lot of talk of sending humans to Mars. This is feasible but I don't think for the above reasons we could colonise the planet or terraform it. There's just too many variables that can go wrong. Similarly on Earth we are destroying our ecosystem. We almost destroyed the Ozone without knowing but who knows the repercussions of depleted Ozone or other things we as yet don't know about? For this reason I fear for our species and the planet.

Anyone any thoughts on this subject?

Can we really move off the planet and live elsewhere in the Solar System?

5

Chemistry / Can you sing the element song?

« on: 16/11/2013 19:58:42 »

I know the first verse 

6

Chemistry / How does cornflour thicken gravy?

« on: 16/11/2013 11:43:29 »

Put some cornflour or flour in water and it turns into a thick goo but reasoning makes me think that the particles should float in suspension in water and not have any effect.

Can anyone explain to me if there is a chemical process that turns water into a sort of quicksand?

7

Physics, Astronomy & Cosmology / If a bomb explodes in space, is there a shockwave?

« on: 08/12/2012 13:38:57 »

I'm just watching Superman 2 and he explodes a bomb in space which releases the baddies  :0

Would it create a shockwave?

8

Physics, Astronomy & Cosmology / Why are there so many meteor showers throughout the year?

« on: 20/10/2012 13:40:16 »

A meteor shower is debris from a comet? Correct?

I'm just wondering why we see so many in a year? Surely the chances of a comet passing the Earth's orbit are pretty slim but yet the debris from Comet Halley manifests itself in the form of the Orinids. Does that mean Halley has a chance of impacting us some day before it evaporates? There are at least a dozen major showers every year which means as many comets have crossed out path? Isn't this a statistical anomaly?

I'm wondering has any inter planetary spacecraft crossed the path of any cometary debris? As a comet doesn't usually follow the plane of our solar system then surely the solar system should be riddled with cometary debris - especially the inner Solar System? Does the Messenger and the Spacecraft around Venus pick up any increase in activity?

9

Geology, Palaeontology & Archaeology / Were all dinosaurs reptiles?

« on: 19/04/2012 17:36:51 »

And how do we know?

A Rhinocerous (is that how you spell it  )looks pretty similar to a Tricerotops so how do we know that the Tricerotops wasn't a mammal?

10

Physics, Astronomy & Cosmology / Inflation and Dark Energy?

« on: 19/04/2012 17:34:00 »

Are they both 2 sides of the same coin?

I hear them mentioned constantly but they never seem to be mentioned together.

What's the difference?

11

Physics, Astronomy & Cosmology / What is the limiting mag in Space and do astronauts suffer light pollution?

« on: 11/12/2011 16:04:41 »

Hi all, a keen eyed observer on Earth can see down to magnitude 6.0, some very keen eyes can see as low as 6.5 but what mag would an average astronaut see?

Also would they be affected by light pollution like a bright Earth, Moon or Sun? Could an observer see stars very close to the Sun in space? And would staring at the Sun be more dangerous?

Many thanks

12

Physics, Astronomy & Cosmology / Could you watch the following and then answer something for me?

« on: 27/10/2011 20:41:44 »

Seen this on the Nasa website, it's the space station boosting its orbit and the astronauts going backwards due to Newton's third law.

http://www.nasa.gov/multimedia/videogallery/index.html?media_id=117824321

Now could someone tell me, when I'm on a plane and I feel the acceleration as it takes off. If I throw something up, why doesn't it shoot to the back of the plane?

13

General Science / How does water behave under pressure?

« on: 10/06/2011 21:01:17 »

I was gonna ask this question: "What would happen if a planet existed entirely made out of water?" but I guess it boils (no pun intended) down to how water behaves under pressure.

So what would happen to water at the centre of an Earth or Sun sized planet?

14

Physics, Astronomy & Cosmology / Why do we need to light the rocket fuel for a rocket to take off?

« on: 28/05/2011 15:36:17 »

After watching this great video:

http://blogs.discovermagazine.com/badastronomy/2011/05/27/endeavours-eye-view-of-her-last-launch/

I seen the fuel flying out of the rockets before it was lit by sparks. The rocket then proceeded to take off.

But why do we have to light the fuel? Shouldn't the rocket just move in the opposite way of the fuel as in Newton's equations regardless if the fuel is lit or not?

15

Marine Science / Should you collect shellfish between September and April?

« on: 23/05/2011 12:30:02 »

Mark asked the Naked Scientists:
   
Hi Chris and team, love the show.

Anyway, I love collecting shellfish, cockles, mussels etc. but there is an old wives tale that says you shouldn't collect any shellfish with an "R" in the month (September to April.)

Is there any truth in the wives tale? Do shellfish have a breeding season? And how do farmed shellfish manufacturers get round the problem if there is one?

Many thanks,

Mark

What do you think?

16

Physics, Astronomy & Cosmology / Can we use Pioneer and Voyager to measure parralax?

« on: 08/04/2011 09:21:36 »

I've been thinking this for some time but could we use the instruments on all 4 spacecraft to measure parralex? I know the instruments are obsolete but the baseline to the Earth is massively increased.

Would it be practical?

17

General Science / Why does my pink paint turn white?

« on: 01/04/2011 09:25:02 »

Hello all, the wife got me decorating  [:-'(] but we bought this paint that goes on pink but ends up white.

Great to see all the spots we missed but how does it work?

18

General Science / If we build too many Wind farms is there a danger we would slow the earth down?

« on: 28/03/2011 13:53:44 »

Would the rotation of the Earth be slowed if we pulled all the energy from the winds?

19

Physics, Astronomy & Cosmology / How can we shoot 1 photon at a time?

« on: 22/01/2011 09:47:07 »

I've read about the double slit experiment and understand the logic but how can we shoot 1 photon at a time?

What constitutes a photon? Can we shoot half a photon? May sound stupid but everything is stupid at this level  []

20

Physics, Astronomy & Cosmology / Why are the bands on Jupiter so prominent?

« on: 22/01/2011 09:41:08 »

I've read that Jupiter is mostly Hydrogen and Helium so why are it's clouds so colourful?