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19 million Amps
deblau writes "On July 27, scientists at the National Nuclear Security Administration's Nevada Test Site said they generated a current equal to about four times all the electrical current on Earth. During the few millionths of a second that it operated, the 650-ton Atlas pulsed-power generator discharged about 19 million amps of current through an aluminum cylindrical shell about the size of a tuna can. Official news release is available from the DOE (PDF)."
In operation, the 650-node Slashdot news-for-nerds generator successfully discharged nearly 19 million hits of HTTP requests through the NNSA Nevada Site Office News webpage, or PDF, on a server about the size and shape of a tuna can. The requests caused the server to implode at extreme speeds, with unrivaled symmetry, precision, and reproducibility.
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~ |rip/\/\aster /\/\onkey
I did the math for everyone... it works out to One point twenty one jiga-watts, Marty!
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Now that was how Pink Floyd should have played.
"about four times all the electrical power on Earth"
Wouldn't that be all of the OTHER power on Earth? After all, this test was conducted on Earth, making even this discharge a subset of the "all the electrical power on Earth," but I digress. It's really amazing, though, to think this was pulse through a tuna-can sized hunk of aluminum. You'd think it melt. Tuna...melt....I really should stop.
...
During the few millionths of a second that it operated, the 650-ton Atlas pulsed-power generator discharged about 19 million amps
Um....unless things have changed in the 25+ years since I took a college physics class, we measure POWER in WATTS, and CURRENT in AMPS. So the number you quoted in AMPS that you claims is eqaual to four times the POWER in amps doesn't make any sense. Of course, that never stopped our /. Editors before!
Best Buy can have you arrested
On July 27, scientists at the National Nuclear Security Administration's Nevada Test Site said they generated a current equal to about four times all the electrical power on Earth.
Where did they do this experiment--Mars?
1. Current != power. Power = I^2 R, or any equivalent formula.
2. They did this on Earth, so it was actually only 80% of the electrical power (or insert appropriate noun here, see point 1) on Earth. Assuming it was four times the normal power levels without this extra current.
I'll bet this amp goes to 11.
Sure.
I = V/R
If R->0, I->INF.
Its certainly possible.
A group of lab-coated engineers having a barbecue using a 48 million dollar grill.
Of interest, the testing work here in Nevada has been farmed out to a private corporation. We now call it the Black Mesa Research Facility. Dr. Freeman and I have just started working together, and we have a number of exciting experiments underway. This last one in the story just happened, and it was very...
hold on, there's something moving out in the hallway, I've got to go check.
)#($)
NO CARRIER
For example
Bert Hickman's coin shrinking
Thaltech's capacitor experiments
Sam Barros's Power Labs page
Bill Beaty's webpage
and many others...
As if a million tuna cans cried out, and then were silenced?
From later in TFA: "During the few milionths of a second that it operates, Atlas generates electrical energy roughly four times the Earth's entire energy production."
This is almost technically right except for "Atlas generates"... Atlas is only a huge capacitor bank, it does not magically "generate" energy, it only stores existing energy.
Now, if worldwide production is something like 25GW and the pulse lasts 10us, we have 25GW * 4 * 10us = 1MJ, a balievable finite quantity.
resistance = resistivity*length/area
It turns out that the resistance is near 1 ohm at .981 Ohms. This means that the power would be found with the following equation.
P = I^2*R
Therefore we can estimate the total power to be a huuuuuge amount, 354.14x10^12 Watts.
My home electric stove+oven has 2x 50A circuit breakers; my electric water heater, 2x 40A; my electric clothes dryer, 2x 30A (all 230V service in US). There are at least 15 million houses in the US with similar electrical service. Some industrial plating baths use 6000 Amperes at less than 3V. So 19 million amps is a serious underestimate of the current being used in the world.
Seriously, people. Is there anyone on the /. editorial staff who can do basic math?
There are easily 19 million electrical service drops in the U.S. alone, counting homes and businesses and such, and I'll bet each and every single one of them uses more than one ampere ALL THE TIME.
Who lets this crap through, anyway?
Ce n'est pas un vrai mouvement de robot!