Comment: Re:Astounding! (Score 1) 141
This is formally a perfectly acceptable way to present the discovery. Two events (points) in Minkowski 4-space which are connected by a ray of light have an invariant time separation tau = delta_t - delta_x
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This is formally a perfectly acceptable way to present the discovery. Two events (points) in Minkowski 4-space which are connected by a ray of light have an invariant time separation tau = delta_t - delta_x
I am a t-mobile prepaid customer, with one of their LG Android Optimus-T handsets, which I got for $130 refurb.
I can get legal tethering from them by setting up the phone as a mobile hotspot for $1.50 a day. If
you use it every day, it is quite expensive, but if you just use it a few days a month for travel or
whatever, it is great. They give you 30 MB of very high speed (I think I have seen 1 MB/sec peaks),
and unlimited 2G for the rest of the day. If you are just checking email, or doing bandwidth-restricted
video chat back home for a while, it is plenty.
I juts got back from a conference trip, where the hotel charged $10/day for internet and you
couldn't even get it in the main conference area, and they didn't even have free internet in the
lobby. I spent my $1.50/day, and was able to edit code via ssh, talk to my wife via video chat
for a while, and look at the web. I had to make sure I did the video chat at the beginning of the
session, while I still was under the 30 MB throttling limit.
You do know that the Union of Concerned Scientists has been around since 1969, not since Bush Jr., don't you? Did you read their history on their web site?
They (we, in this case) certainly have been more vocal during the most egregiously anti-scientific administrations, but Bush Jr. wasn't the first.
There is a truly excellent book, "Hitler's Uranium Club" which documents what the Germans themselves said about their efforts. It is edited by Jeremy Bernstein. It is a collection of transcriptions of conversations among the leading German scientists (Heisenberg, Laue, etc., not all of whom were actually doing nuclear physics), who were captured lat in the war and transferred to Farm Hall in England. They were recorded secretly, so what is said is very candid.
Anyone interested in this history should definitely read the book. The conversations run the gamut from very technical, to various fights over social issues.
OK, I'm in the process of debugging somebody else's 43,000 lines of FORTRAN code. (I hate FORTRAN...). What I see in here would require a number of offsets which would cost approximately the entire US GDP to buy. This is not the first time I have seen code like this, either.
If I could get my hands on say an ounce of Pu 238 I could build a RTG that would power my home, all my vehicles, and enable me to quit my job and live of the check my local electricity provider would have to pay me for the excess power I would generate. It would generate full power for ~ 87 years and not only wold I be using the greenest power available I would be providing a community service of disposing of a radioactive material.
OK, you must have a very efficient house. The specific heat output of Pu238 is about 0.5 Watts/gram, so an ounce puts out about 14 Watts. Given 10% RTG efficiency (which is much better than normal), I give you about 1.5 watts from this. Can you run your house on that?
I think your sample is badly biased by ending on the 1,000,000th prime, since essentially all your primes are then those between 10,000,000 and 15,485,863 which is the last prime in the first million file.
It took me a while to notice this, too, since any sampling which doesn't sample exact decades is badly biased. By the time you get all the primes less than 1e9, the distribution is very flat. Here are the stats:
first digit histogram [6003531, 5837665, 5735086, 5661135, 5602768, 5556434, 5516130, 5481646, 5453140]
fractions:
0.118069263338
0.114807236968
0.112789853038
0.111335485585
0.110187602998
0.109276369051
0.108483724924
0.107805540623
0.107244923476
I am running through all the primes less that 1e11 right now, and will post that later.
OK, this is an interesting new marketing strategy for a company as a way to remove a product from their line. You don't ever have to stop selling it. You just keep halving its size until no one is sure whether they have bought one or not.
With some good access to the RDF, everyone will continue to hear music, whether or not there was actually a device in the box.
I still own a first generation Shuffle. I think it weighs 50 grams. Really, that's just to much to bear, carrying it in my briefcase. I know that if my briefcase only had a 10.7 gram Shuffle in it, it would be MUCH easier on my walk to work.
Wow! Look!! A stray meatball!! Let's interview it!