If you were standing on a train travelling at high speed

[jimboalee]

How many reindeer pulled Santa's sleigh?

Rudolf and Blitzen are two.

Blitzen who lost his brakes and was then forever known as 'Blitzen the brown nosed reindeer'.

 

[jimboalee]

Well I didn't claim to be much good at explaining things if you're interested there are some Stanford Lectures on relativity as part of the programme of getting their material out a bit more the last few years (Leonard Susskind is very famous)


View: http://www.youtube.com/watch?v=BAurgxtOdxY
probably best avoid the ones on general as they are a bit harder .

I recommend this simple book http://www.amazon.co.uk/Introducing...=sr_1_2?ie=UTF8&s=books&qid=1259230547&sr=8-2 it is 176 pages but mostly cartoons. They are available in quite a few public libraries.

Yup, that Stanford.