Physics

I need help calculating the impact speed of a positron and electron starting at 5 cm apart
Let's say we have a positron and electron at rest with respect to each other. Since they are oppositely charged, they are immediately attracted to each other and begin to accelerate toward each other. At any point in the path, you can calculate the force between them using Columbs law, based on that, you could calc... 14 May 2010 18:20

Passive Earthquake Proofing w/ Dry Stone
http://en.wikipedia.org/wiki/Earthquake_engineering#Friction_pendulum_bearing "People of Inca civilization were masters of the polished dry-stone walls, called ashlar, where blocks of stone were cut to fit together tightly without any mortar. .. . . "Peru is a highly seismic land, and for centuries the morta... 11 May 2010 04:37

Quantum Gravity 349.92: John Nash and Gian-Carlo Rota Won Leroy Steele Prizes
From Osher Doctorow Rota also died prematurely in his sleep at age 66, or would have probably gone on to win other prizes. He had been Vice President of the American Mathematical Society some years back. I'm not sure whether Nash won in 1989 or 1999 - maybe the former. Readers can check it online, for exampl... 9 May 2010 23:04

Direct observation of Born-Oppenheimer approximation breakdown in carbon nanotubes
From: http://arxiv.org/ftp/arxiv/papers/0901/0901.2947.pdf Direct observation of Born-Oppenheimer approximation breakdown in carbon nanotubes Adam W. Bushmaker‡, Vikram V. Deshpande§, Scott Hsieh§, Marc W. Bockrath§, Stephen B. Cronin‡* Receipt date: 11/25/2008 ‡ University of Southern Californi... 9 May 2010 17:37

God doesn't play dice: cause and effect
God doesn't play dice: cause and effect (causality and dependence) Einstein said "God doesn't play dice" because he didn’t accept the probabilistic arguments of quantum theory. He thought that behind the probabilistic arguments of quantum theory some real process is hidden. This real process makes ... 3 Jun 2010 15:40

Links and snippets. DEMONSTRATING THAT GAGALOGY IS GOING WELL & KICKING .... and light years indeed from the superior intelligence found in True Geology
Belba Grubb <trungsisterfan(a)yahoo.com> wrote in news:10303ad6-923a-4f33-a260- 47d58131f899(a)n15g2000yqf.googlegroups.com: On May 8, 9:23�pm, Greatest Mining Pioneer of Australia of all Times <australia.mining-pion...(a)neuf.fr> wrote: ? Yes, I find it puzzling too, but what the heck. :-) Nothing... 9 May 2010 14:20

a problem I worked on once
Some unusual things happen when a parabola undergoing rotation is also accelerating to the speed of light. These are the equations and the moving graphs, but I have yet to understand what it means. This gives the framework: http://mypeoplepc.com/members/jon8338/math/id41.html This gives the result: http://my... 9 May 2010 15:25

GOOD GAWD! SOME PRAISE FOR ED CONRAD
TROLL-O-METER 5* 6* *7 4* *8 3* *9 2* *10 1* | *stuporous 0* -*- *catatonic * |\ *comatose * \ *clinical... 9 May 2010 12:08

The cosmic bullies that sent 30 Doradus 016 reeling must be even bigger, possibly upping the theoretical maximum heft of today’s stars
Fast-moving star is a really big loser The cosmic bullies that sent 30 Doradus 016 reeling must be even bigger, possibly upping the theoretical maximum heft of today�s stars. http://www.sciencenews.org/view/generic/id/59009/title/Fast-moving_star_is_a_really_big_loser ... 9 May 2010 09:58

Splitwater Solutions - NGen and the New Economy
Splitwater Solutions - NGen and the New Economy NGeneered Virus To Split Water for Energy... MIT’s Belcher uses engineered virus to split water By Christine Peterson, on April 16th, 2010 Angela Belcher and team at MIT have tweaked a bacterial virus to serve as a scaffolding to: attract and bind with mol... 8 May 2010 23:16