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I've lost more computers to ...

Professeur Shadoko Re:Never really lost one (317 comments)

Wow if you really have a 386DX66, don't lose it, it's one of a kind.

more than 3 years ago

Japanese Researchers Test Flying Trains

Professeur Shadoko Re:I fail to see the point.. (221 comments)

300+ mph without all the expensive and fragile magnets required for maglev trains, while still powered by overhead electrical lines.

AFAIK a good part of the trouble they had when running the french TGV to >550km/h speeds was related to the overhead electrical lines. Waves propagating along the line and preventing a good contact between the line and the train.

Plus with this kind of train, there is no ground connection. So they would need two overhead electrical lines.

more than 3 years ago

Kepler Recovers After 144 Hour "Glitch"

Professeur Shadoko Re:BIG PROBLEM???!!! (73 comments)

does it matter what pixels in the imager are receiving a particular star? Are they all calibrated the same or, if the star-light falls upon more than one or on a pixel boundary, can the software make adjustments so that the measurements will provide consistent data?

Looks that they designed the thing so the light of a star is not measured by a single pixel:

The CCDs are not used to take pictures. The images are intentionally defocused to 10 arc seconds to improve the photometric precision.

more than 3 years ago

The Problem With the Top500 Supercomputer List

Professeur Shadoko Re:New Benchmark (175 comments)

Any modern compiler will see that this code does nothing and simply remove it. Your benchmark is a no-op :-)

more than 3 years ago

The Problem With the Top500 Supercomputer List

Professeur Shadoko Re:Missing the Point (175 comments)

> The real innovatiors should be recognized for their efforts to reduce space, power and cost

Trust me, to build a computer for the top of the top500, you have to be pretty good at these. Well, at least space and power. With over 100,000 cores, without an efficient (dense) packaging you'll need a room way too big. And a dense packaging leads to all kind of heat issues, so you have to be power-efficient.

more than 3 years ago

The Problem With the Top500 Supercomputer List

Professeur Shadoko Re:Simple fix (175 comments)

It would hurt both the GPU and the CPU performance. Maybe not in the same way, but still.

Plus the article complaining about the use of GPUs is stupid. GPUs can be and are used to solve real scientific problems. They are not as easy to efficiently use as the CPUs, but they are almost as versatile.

more than 3 years ago

The Problem With the Top500 Supercomputer List

Professeur Shadoko 100.000 ? (175 comments)

Even with an hypothetical hyper-fast network, 100.000 android phones won't get you anywhere near the top of the list.

Heck, even 100 000 Nehalem (core i7) cores won't get you in the top 5.

So, android phones ? You'll need millions of them.

more than 3 years ago

My Automobile Gets __ MPG

Professeur Shadoko Re:Diesel (1141 comments)

Well, the diesels winning in Le Mans are not slow, but they are certainly very noisy and insanely expensive to buy and repair.

more than 4 years ago

My laptop's battery's good for roughly ...

Professeur Shadoko Re:Something well under an hour. (454 comments)

Well, mine is absolutely completely dead, and has been sitting in a drawer for years. But my laptop runs fine without it. I just have to use suspend-to-disk when going from one AC outlet to another.

more than 4 years ago

VASIMR Ion Engine Could Cut Mars Trip To 39 Days

Professeur Shadoko Re:Primary power source? (356 comments)

No, you cannot.

Do you know that the laser used to measure the distance between the earth and the moon has a radius of over 6km when it reaches the moon, and that only one photon every few seconds comes back to the detector on earth ?

Considering how far the spaceship will be from earth, it is not even remotely possible to focus a beam precisely enough to transfer energy.

about 5 years ago

US Electricity Grid Reportedly Penetrated By Spies

Professeur Shadoko Oh no... (328 comments)

They must have the CIP module !

more than 5 years ago

Average Web Page Size Triples Since 2003

Professeur Shadoko Re:Check out the size of the /. front page. (241 comments)

I checked.
Around 75KB, down to 17KB with gzip compression.
Plus around 20KB in png/gifs.

Not that big.

more than 6 years ago


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