Recent content by AlisonArulia

oooooo. I get it now. Thank you so much.

Hi everyone, I hope you can help me with this as I am having a problem sorting all this out. I have been told that Gravity and acceration are the same thing. It was explained to me by thinking about droping a ball in a lift (that was is space so no gravity) and the ball would act as if it...

OMG - this is so much fun. I am learn all the time - 1st to everyone I want to thank you. I am really interested and people like you all make it so easy to understand. I say thank you again to every one, you are so kind to take the time to share your understanding and skill. 2nd - sorry...

So - sorry to get this. :-) There is no direct force - say a force between 2 masses. Just a curve in space time that is created by the masses. All other objects (mass) will follow a streight line - along the curve. This being governed by the size of the mass - the more mass the more curve...

Another dumb question, sorry. I am trying to get my head around if there is some force (Gravity) that acts like an elastic band, pulling everything towards everything else – the more mass a thing has the stronger the elastic band. Or is it Gravity doesn’t exist. What happens is that...

I would just like to offer, again, my thanks to everyone who has taken the time to share their expertise with me. I am one of the people who try and learn "stuff" in later life that they weren't taught at school and folk like you are a real help to my understanding, Thank you all. (Don't...

So how can we check that what we are reading is true. Is that article OK for example?

Hi Again (sorry to keep bothering you) I found this on WikipediaAnswers. This is the type of thing I was looking for. Not too technical but full of information and interest. http://wiki.answers.com/Q/Why_is_there_snow_on_top_of_mountains_if_hot_air_rises I assume it's been checked by...

Thank you for your time and your kind answer. I will look at the link you gave me and try to learn more.

I learn from reading books and helping my son do his homework. I went to school in 70's and w didn't get this deep into phisics - but I really do want to learn. But you are correct when you say I don't have a deep understanding, but I am trying to lern very hard. I will look at the sites...

:smile: I seem to have got it all wrong. I am pleased that you pointed this out. Better then getting it totally wrong in the talk. Basic problem is that I think I am in way over my head. Does anyone know of a "simple" site that I could read to get some more details. Thanks again for...

Explaining E=M C^2 to 14 year olds ? Hi, I have been asked to give a "very" brief talk to to some 14 year old kids on the subject E=M C^2. I can write this all down using formula and it makes sense. But to "say" what this means at the right level, I am having BIG problems. I can only talk...

Thank you all for your very good answers. I only wish I could fully understand it all. I will take some time and read up on all the answers and try and understand a little better. Just one little point I am a "her" - not a "him" :smile: Thanks again Alison

I am sorry, I don't understand that answer

Sorry to not understand (everyone on this site is very clever) but would not this mean the world will just keep getting bigger. Or am I missing something basic here ?