4 ms·
Awesome, I'd love to see more links like this if anyone has them.
by nopassrecover 17y ago
Awesome, I'd love to see more links like this if anyone has them.
- andreyf 17y agohttp://en.wikipedia.org/wiki/Category:Probability_theory_paradoxes http://en.wikipedia.org/wiki/Category:Probability_theory_par... and more generally - http://en.wikipedia.org/wiki/Category:Mathematics_paradoxes http://en.wikipedia.org/wiki/Category:Mathematics_paradoxes Apologies to anyone who was expecting you to get work done today.
- nopassrecover 17y agoHaha thanks!
- TrevorJ 17y agoHere is a video of an airplane taking off on a treadmill. http://www.youtube.com/watch?v=IbRcg3ji_Pc http://www.youtube.com/watch?v=IbRcg3ji_Pc The crux of the issue is that no matter how fast the wheels spin in the opposite direction they exert almost no force on the airframe, thus failing to counteract the forward pull of the propeller.
- slackenerny 17y agoLast year Vaughan Pratt (of automata theory and Knuth-Morris-Pratt algorithm) asked on a hardcore theoretical physics group blog how does a light mill (device allegedly proving corpuscular nature of light, http://en.wikipedia.org/wiki/Light_mill http://en.wikipedia.org/wiki/Light_mill) really work. To my knowledge this question after 150 years still awaits consensus over a satisfactory anwser (while having far too plenty seemingly convincing ones). http://golem.ph.utexas.edu/category/2008/07/light_mills.html http://golem.ph.utexas.edu/category/2008/07/light_mills.html A toy simulation: http://www.gregegan.net/SCIENCE/LightMill/LightMill.html http://www.gregegan.net/SCIENCE/LightMill/LightMill.html