Braingle: 'Hot Wheels' Brain Teaser

Hot Wheels

Science brain teasers require understanding of the physical or biological world and the laws that govern it.

Puzzle ID:	#42614
Fun:	(2.57)
Difficulty:	(2.11)
Category:	Science
Submitted By:	tangled_brain

Hot Wheels has finally come out with a car of Men In Black-like gravity-defying abilities!

These cars are of similar size, weight, and speed capabilities to the mass-produced plastic toys kids have loved since 1968, but have one crucial difference in design that allow them to zip past upside-down on the ceiling or cruise by on the wall! What is this difference, and how in the world can it let you drive a toy car upside-down?

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Comments

pyrotechnic_lad Jul 26, 2008	Cool! Didn't know that.
carlp Aug 29, 2008	cool, came to me quick, but didn't think that it was correct till i saw the answer.... good one
kp52 Oct 10, 2008	Interesting. I kind of had an idea that it had something to do with air. Good teaser.
bigabbs Dec 05, 2008	i've seen about a million commercials for cars like these
VitalStatistic Dec 31, 2008	A site I frequent, zazz dot com dot au were selling these recently so I knew the answer straight away. Wouldn't that be cool though, if someone made an F1 track with a section that was inverted for 50 or a hundred metres. Dunno how it would be if one of them stopped on it though.
tangled_brain Dec 31, 2008	well if anybody slowed down on that section, that person would lose the necessary downforce (from that perspective, of course) and hence, the friction that would keep the tires spinning. without that, speed slows down considerably, further lessening downforce, until contact is lost and the medics are called.
tangled_brain Dec 31, 2008	needless to say, nobody has attempted to construct such a course.
Paladin Apr 09, 2009	Wish I were a kid again
Fearless88 Jan 31, 2010	By little brother has one of these and I fiddled with it the other day to figure out how it worked. Nice Teaser though!
cinivon Dec 23, 2010	Yes, other brands, too. My son has some. The fan needs to work quickly and the flaps on the sides need to be undamaged or else they fall...