What the ruck?The physics of a bump in a rug
Not one, but two papers that examine the physics of a bump in a rug have appeared in a recent issue of Physical Review Letters. They examine the mathematics that describe both the statics and dynamics of these systems and perform experiments to determine the accuracy of their math.
One of the things that drew me to science and engineering when I was younger was a desire to understand how everyday things worked. What made a clock tick, why the bubbles form on the bottom of the pot just before water boils, how to describe the shape of ocean waves. As I got further and further along in my academic career, I came to the realization that these seemingly simple physical curiosities were incredibly complex and often couldn't be described using an exact mathematical formulation.
As an example, take the motion of the pendulum in a clock. The concept of a simple pendulum is typically introduced in junior-high science or high school physics. A simple pendulum is a point mass dangled from some fixed point by a massless rigid rod that gently swings (frictionlessly) through small angles under the influence of gravity. It can be described as having a period equal to two pi times the square root of the ratio of the length of the pendulum to gravitational acceleration.
Bron: Ars Technica
Lees verder: http://arstechnica.com/science/news/2009/1...tm_campaign=rss
Laatste berichten
- 23:25 2013 – Augustus Vraag 3
- 23:07 Rood laserlicht 2
- 23:04 Bruine vlekken op treinaanwijzerbord 5
- 15:28 Vraag 2009 Juli Vraag 5 5
- 12:51 positie 2
- 10:44 Schroefdraad berekening 8
- 24 apr [scheikunde] Kan chloorgas de geleiding van elektriciteit belemmeren? 9
- 23 apr Weerfrustratie 9
- 23 apr geen minkowski-ruimte toch? Doe ik dit nou fout? 15
- 23 apr do-re-mi-fa-so vliegtuigen 7
- 23 apr Kunnen quantum Zonnecellen 190% quantum efficiënt zijn 3
- 23 apr De Euro Nederlandse 100 qubit computer komt eraan
- 23 apr projectiel 8
- 23 apr Verschil tussen deze 2 vragen 5
- 23 apr [scheikunde] berekeningen labo vitamine c bepaling 1
- 22 apr [wiskunde] rode en witte ballen verdelen 8
- 22 apr Rotatie van het heelal 41
- 22 apr Muntje opgooien 14
- 21 apr Reactiviteit silyl enol ethers 1
- 21 apr Criterium voor vochtretentie
Nieuwsberichten
- 04 mar Een nieuw soort magnetisme: altermagnetisme
- 31 okt AI kan via stem diabetes vaststellen 11
- 21 okt Einstein krijgt wéér gelijk 45
- 07 feb witter dan wit 20
- 19 jun irrigatie en de aardas