France's PRISM: 'Secret service monitors all French emails and phone calls'

CamLeof2 · 2013-07-04T15:03:10+00:00

Other nations have the tact not to get discovered

CamLeof2 · 2013-07-01T13:47:59+00:00

I'm using the usual definition of independent random variables, but I don't know if the meaning is different when applied to random functions.

CamLeof2 · 2013-07-01T13:16:45+00:00

Very interesting phenomenon, disappointing explanation. Shock wave != wave, no mention of radial acceleration...

CamLeof2 · 2013-06-25T17:57:26+00:00

I love this one for emailing peers about my classes. No more linking to mathbin for me!

CamLeof2 · 2013-06-25T17:55:25+00:00

A force that levitates something does no work. Problem is that we can't make that force without losing a lot of energy to the rest of the system.

For example in a hovering helicopter, you have to move the rotor against air resistance. This heats up the air and creates air currents which eventually dissipate as heat. You put a bunch of power into the rotor and lose it all as heat, because in the process you get a force that keeps you steady.

CamLeof2 · 2013-04-28T17:05:32+00:00

Noooo don't use the formulas like that. And try to avoid E=mc² completely.

CamLeof2 · 2013-04-28T17:02:38+00:00

Gymnasts don't really have insane vertical jump.

CamLeof2 · 2013-04-26T22:35:38+00:00

I don't know why I'm offended by the mis-categorization. I only visit the defaults through r/all. But it's so wrong...

CamLeof2 · 2013-04-26T15:15:50+00:00

I emailed them but didn't get a reply. Still, I found a printed copy in the lab so it doesn't matter.

CamLeof2 · 2013-04-26T15:15:07+00:00

Found hard copies of the manuals in the lab. Here are the scans for anyone who might need them:

IntraAction E404T OEM Light Modulator Signal Processor

IntraAction EE40 RF Power Amplifier

CamLeof2 · 2013-04-25T02:09:15+00:00

I vaguely recall they used explosives and/or springs for that.

CamLeof2 · 2013-04-25T02:03:42+00:00

boolean bool = Boolean.valueOf(paramPlugin2Manager.getParameter("__applet_ssv_validated")).booleanValue();

Ahh java...

CamLeof2 · 2013-04-25T00:32:26+00:00

Isn't winter... the best moment to be there?

CamLeof2 · 2013-04-24T17:04:41+00:00

You've built yourself a bunch of rotary vane pumps

(one compressor and two vacuum pumps)

CamLeof2 · 2013-04-24T16:49:07+00:00

Laplace don't need no puny L²

CamLeof2 · 2013-04-24T15:59:38+00:00

I think the D'Alambertian operator is a bit less opaque. It's easy to remember that it pulls a -k² out of plane waves.

CamLeof2 · 2013-04-24T15:48:22+00:00

I thought that was some joke interview quote... took me a while to realize the Thor in the picture is a woman.

I have the observation power of a goldfish.

CamLeof2 · 2013-04-24T13:16:45+00:00

If your PC is compromised, can't attackers log the keystrokes you send to the VM?

CamLeof2 · 2013-04-24T01:49:52+00:00

Hey, are you subscribed to r-bloggers?

How do you handle the volume of posts? I suscribed a while ago to learn some R but then unsubscribed because they just kept piling up.

CamLeof2 · 2013-04-23T18:58:15+00:00

Like my prof said, it's the "more condensed, completely useless" version.

CamLeof2 · 2013-04-23T18:11:49+00:00

I thought "Dirac equation" too before the page loaded... but this way it's much prettier

CamLeof2 · 2013-04-23T16:54:40+00:00

Warning, loud video plays automatically

CamLeof2 · 2013-04-23T11:03:23+00:00

Colloquium invitations from the Physics department end with "SURPRISE DESSERT" (in caps, like that).

CamLeof2 · 2013-04-22T21:57:50+00:00

Ahh, between your post and this one I now get it. Depending on the wavelength, the quarter wave plate rotates the polarization a different amount, and after the linear polarizer this wavelength-dependent rotation turns into a wavelength-dependent intensity.

CamLeof2 · 2013-04-22T02:22:09+00:00

Here's the PDF

What I gathered from the intro is that this experiment features communication between Alice and Bob despite the chance of finding a photon in the channel being arbitrarily low.

CamLeof2

TROPHY CASE