Recent content by rmshepherd

Thats what i was thinking Apart from the diagram which was a standad cross section of a themous flask you have all the information in the question. After been given the examples you had to complete the table for the stopper and jacket.

Question was as follows Labled picture of a vacuum flask with a stopper in it and a jacket around the flask like a cross section of a thermous flask. the student is asked to complete the table below "in what ways can the flask lose heat" all 3 are ticked for the vacuum flask preceded...

my atempt at a table hasnt formated properly its ok on the preview but not when i post but I am sure you get the idea dickfore you seem to be trolling a bit there don't make me dig out my grammar nazi gif :-)

the table on the test stated as example, in a vacumm flask heat was lost from the vacuum flask via convection and conduction which i said to my sister was wrong at least in a perfect vacuum but as the diagram atached was just labled vacuum it should be taken as such despite the difficulty of...

"i was wrong " well i always assume that's possible don't supose you could explain why ?

my sister asked for help with a science test she had as preperation for her gcse's in this test was a table asking about heat transfer in a vacuum flask some parts of the table were filled in as an example but the question was would heat be lost through A convection B conduction C...

i found this on a website , but I am sure I've read other stuff saying a black hole won't form ? "If a particle is accelerated to a certain velocity near that of light, it gains enough mass to collapse into a black hole, making it impossible for observers to make statements about its...

well thanks for your replies people but I still don’t have a clear picture in my head that would occur in this scenario, so could I get a straight answer on these questions as the seems to be some debate 1 if I accelerate a brick to the 99.9% c will it have a stronger gravitational field than...

I'm trying to get my head around an idea that i had and i was wondering if you people here could clarify for me i am sure some of my basic assumptions are wrong so here goes 1 objects cannot go faster than the speed of light, it take more and more energy to accelerate an object as it...

have you watched the feynman qed lectures regarding light reflecting from glass They are available on the internet if you know where to look although I am sure its not alowed for me to link to copyrighted material on a bitt torrent site I am sure you could find them "nuge nuge"

ok i see so in quantum physics relative effects play no part in the mathmatical model ? i have read about the compatibilty problems with quantum physics and gravity as a layman it seems to me though that if general relativity is an acurate model this would dismiss the graviton even if the...

hi all this is my first post i am not a physicist but i do have a basic understanding, at least more than the average person on the street i guess. my main problem is a lack of mathmatical understanding which holds me back but does not stop me enjoying physics. i have a question i would like...