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Comment: Sundiver (Score 2) 502

by Kim0 (#39293237) Attached to: LED's Efficiency Exceeds 100%

In the book Sundiver by Robert L. Forward, a research ship traveling inside the Sun gets its drive sabotaged, and they escape by using the cooling laser as a drive, freezing everyone aboard.

Lasers are today used to cool to a few milli Kelvins, and below, very close to absolute zero temperature. The reflected colour of the laser is a little bit less pure, as the thermal vibrations are removed by increasing the entropy of the laser light.

The same principle is going on in this light diode.

Comment: Absence of Ockhams razor is insanity (Score 1) 220

by Kim0 (#37055612) Attached to: IBM Plays <em>SimCity</em> With Portland, Oregon

3000 equations is a LOT, so this is surely unnecessarily complicated, and thus very unlikely to work.
If just one expert gives a wrong part, then the whole model can become faulty.
And there appear to be no testing of this model.

This is surely going to give even more wrong results than the climate models and nutrition models.

Comment: Re:Errm... what? (Score 1) 545

by Kim0 (#36945262) Attached to: What Do I Do About My Ex-Employer Stealing My Free Code?

Evil is good because of some random rule?
Just because something is a right does not mean that it is the right thing to do.
The more rights, rules, and law there are, the more resources are wasted, especially on lawyers.

The slashdotters adamantly stating that something is right because of rules,
probably have Aspergers syndrome. They do not analyze consequences.

Comment: Big and expensive (Score 1) 244

by Kim0 (#36759408) Attached to: New Scottish Wave Energy Generator Unveiled

The pictures show a big expensive jointed float.
Wind turbines are also big and expensive stiff machines.
When I as a physicist and engineer ponder on this, I get cheap light efficient constructions of film, like paragliders and balloons.
Why is this so?
Perhaps generators are expensive to subsidize industry.
Perhaps I am a genius.
Which is more likely?

Comment: Again (Score 1) 186

by Kim0 (#36509734) Attached to: Sound-Based System Promises Chipless Phone Payment

There have been myriads of systems like this.
I was contacted by a french company doing the same, with their own sound encoding system,
which was quite similar to DTFM of the keys on old keypad tones.
Then there were a similar system made by an european crypto-key calculator producer,
which actually used DTFM.

The principle is so simple that any good crypto programmer could have made it with an
ordinary modem. I take this as a strong sign that this kind of technology, including
near field communications, are hindered by some other factor, such as disinterest from banks.

Comment: A true solution (Score 2) 284

by Kim0 (#36384330) Attached to: Court Rules Passwords+Secret Questions=Secure eBanking

What you see on your screen may be fake, and what the bank sees you type may be fake too.
The only thing that may not be faked are your identification to the bank, when using one-time-pad.

The obvious solution, which is too deep for bankers and judges, is to secure all the necessary information.

In practice this means having something looking like a calculator which shows each transaction,
having cryptographic secure two-way communication to the bank via the net, and being tamperproof.
A sort of two-way code calculator.

Heavier than air flying machines are impossible. -- Lord Kelvin, President, Royal Society, c. 1895

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