Recent content by suolintu

Another IYPT 2008 question (www.iypt.org).

This is one of the IYPT 2008 questions. (www.iypt.org, International Young Physicists' Tournament) As so, the teams are supposed to work these out on their own. Answering the question here only ensures that other teams also get the answer. This is unfair to the teams that have actually...

It is, but I don't know if you can really call it a surface as the train isn't touching the track. Basically friction is caused by electromagnetic interactions between the atoms of the two objects. I quess that in theory, you could have two objects that consist of atoms which have the...

Thanks Edgardo!

[SOLVED] Bending spaghetti I ran into a very interesting phenomen. When bending spaghetti, it always breaks into three or more pieces. By bending it, you can't break a piece of spaghetti into two pieces (note: bending from both ends or one end stationary). I heard that there is a mathematical...

"A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away." - Antoine de Saint-Exup'ery