The Tiny Proton The Tiny Proton

First of all, that’s five standard deviations off of the expected value. On a practical level, that means that of all the variability in every single measurement made of the size of the proton in the history of time, this new measurement is so damned far off that the guys doing the experiment didn’t even notice it the first two times (2003 and 2007) they measured it.

Anyhow, something is amiss. Most likely, this is not the sign that everything we know is wrong, or that the powerful equations of quantum mechanics are all wrong (as evidenced by the 20th century). Rather, this is probably a sign of some new interaction between muons and protons we haven’t seen before. That means new particles, and new physics. Wahoo!

Note: I can’t link you directly to the report from Nature, because you can’t access the information because we live in a stupid, fucked up world.

Hehe. J’avoue.

Apollo 11 Saturn V Launch (HD) Camera E-8

Via: Video – High Quality Apollo 11 Saturn V Launch

Apollo 11 Saturn V Launch (HD) Camera E-8 from Mark Gray on Vimeo.

This clip is raw from Camera E-8 on the launch umbilical tower/mobile launch program of Apollo 11, July 16, 1969. This is an HD transfer from the 16mm original. Even more excellent footage is available on our DVDs at our website at

The camera is running at 500 fps, making the total clip of over 8 minutes represent just 30 seconds of actual time. Narration is provided by Mark Gray (me), Executive Producer for Spacecraft Films.

Energy Is Not Conserved

Energy Is Not Conserved

The point is pretty simple: back when you thought energy was conserved, there was a reason why you thought that, namely time-translation invariance. A fancy way of saying “the background on which particles and forces evolve, as well as the dynamical rules governing their motions, are fixed, not changing with time.” But in general relativity that’s simply no longer true. Einstein tells us that space and time are dynamical, and in particular that they can evolve with time. When the space through which particles move is changing, the total energy of those particles is not conserved.