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Comment What's so peculiar about this? (Score 1) 17

The finding simply means that there are accreting objects where the accreted matter is heated up less, i.e. it is somewhat cooler. This results in the Boltzmann spectrum being shifted towards longer wavelenghts. These are harder to detect because X-Ray sensors are only that sensitive, and there are many other UV sources around. That's all.

Comment Irrelevant. (Score 1) 32

When a brute force crack again nst AES128 or AES256 takes somewhere between 10^20 to 10^50 years (do the math!), then a factor of 200 to 1000 is irrelevant. Grover's algorithm is much more interesting, should sufficiently large quantum computers ever be feasible. And even if, using longer keys raises the effort exponentially. Rijndael can easily be expanded to longer keys, say, 512 bit. Case closed for now.

Comment Did nobody do the math at FCC? (Score 2) 79

The solar constant is roughly 1361 Watts per square meter. The mirror is 60x60 feet or A_mirror = 335 mÂ. The target area is about 3 miles wide or 5.8 km (assuming a square) or A_target = 5.8 mn mÂ. The mirror will be tilted at 45 degrees give or take, so we need to take the cosine of 45 degrees = 0.7071 into account. The earth's atmosphere has a transparency of estimated 80 percent in clear weather conditions. Taken together, the energy flux on the ground will be solar constant x A_mirror / A_target x 0.7071 x 0.8 which is approximately 0.45 watts per square meter. What in the world does anybody think it is good for - except burning investor money?

Comment Re: Brain rot even farther back ... (Score 1) 121

Same like preparing food. Many people never learned or forgot how to prepare meals from scratch (from their basic ingredients) since the food industry came up with preprocessed industry food. They make a fortune while making everyone depends on their products, in particular those who cannot afford e.g. organic food. AI is the preprocessed food (literally!) of software development. And not only software development. If AI companies have their way, manyâ"or even allâ"aspects of life will be affected. They promise a better life with more spare time because machines take over the boring tasks, and what do we do with the additional spare time? Hang out in "social" media?

Comment Re:Even more light pollution (Score 2) 53

Thanks to simple math and physics, it can't possibly work. The solar constant is roughly 1.362 kW/m. A 10x10 m mirror will capture about 136 kW at optimal conditions. Light is reflected down at an angle of about 45 degrees, so you've got to account for this by multiplying with the cosine of 45 degrees, which is approximately 0.7. So that's 96,307 W overall, which are then scaled to an area of about 200,000 m, which is 0.49 W/m or about 500 mW/m. For 4 minutes. I guess it is cheaper to connect an old NiCd battery to the solar panel instead.

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