I wasn't sure whether to admit this experiment even happened or not because it pushes my ratio of failed experiments to successful ones over half... But I would know even if I wrote this or not so here it goes - I tried to get a knife stuck in a jar of rice and it didn't work..
I was trying for at least half an hour so I feel quite defeated over this... This is the worst failure not only because it is my second of the day but also because I have absolutely no idea why it didn't work! It was supposed to be so simple.
You fill a jar with rice, jab a knife into it and wobble it, pull it out and repeat this for anything from 3 times to 12 times to the many hundreds of times I did. Eventually the rice grains become more compacted. even though the knife is smooth it still causes friction and as the rice becomes more tightly packed, more grains of rice rub against the knife causing friction to increase. When the friction equals the force of the weight, the forces are balanced and the knife cannot be removed. Simple right?
Maybe today just isn't my day for experiments... In the plus side, repeatedly stabbing something was pretty good stress relief!!
No comments:
Post a Comment