There was no way to burn CDs at home in 1990. Just take a look at the Wikipedia article on CD-R.
A 1990 CD writer was the size of a washing machine and costing $35000. The first recorder under $1000 came out in September 1995.
Cyber attacks can cause large damage without much risk.
That physical attack was just stupid. It can't do much damage since it hits only one power plant, and the attacker can be caught moreeasily.
People who have empathy and consideration for others can make dispassionate decisions when necessary, or at least many of them can.
Psychopaths have empathy, they can just turn it off.
Good point that people with empathy can make dispassionate decissions when needed. I would say intelligent people can do that normally.
Makes me wonder what is so special about psychopaths, maybe that they turn their empathy off more regularly, and more easily?
Yes, it is more obvious in classical electrodynamics. For all waves and electromagnetic fields the superposition principle can be applied because the Maxwell equations are linear. This means that if you add any fields or other waves to an incoming wave you can describe the result mathematically as the sum of the incoming wave and whatever you generate.
According to the Maxwell equations the incoming wave is influenced by susceptibility and permeability of the materials it is going through, and by charges and currents. But waves and fields are just added to the fields of it, they do not change the original wave. So to compensate changes in a wave you have to add a wave that compensates the changes, and this wave must be actively adapted to the incoming wave.
So "the ability of electromagnetic fields to redirect or scatter waves of energy" means that they just send out electromagnetic waves that interfere with the waves around the object? Was already wondering since when electromagnetic fields can redirect electromagnetic waves. That only works in Star Trek.
If they use a compiler that is older than Truecrypt they would avoid that the compiler could insert any code specifically into Truecrypt.
Truecrypt 1.0 is from February 2004, Visual C++ 1.52 is from the Nineties, so if someone still has an old copy they should be safe.
The efficiency of the lasers could be increased by replacing the flash light bulbs pumping it with laser diodes, from about 1% to up to 20%. This also increases the cost a lot though.
He should call it radiation pressure, not light pressure, because of the different wavelength of x-rays. But the problem is the same, physically he is correct.
Well, yes and no, it also depends on the field what term is used. Astronomers always name it gamma radiation, while physicists from the field of elementary particles and accelerators use the term gamma radiation only for radiation coming from the nucleus. X-ray radiation is used to specify the wavelength range, for any other source.
I think this shows one big problem in climate science and in science in general: There are only certain things that get funding, and there is no incentive to research other things that are as important and interesting.
Climate science gets funding for research into things that are potentially dangerous. So they look for effects that make climate change worse. But they would never get much attention for a report on a mechanism that slows down the temperature rise, like growing antarctic ice that will increase reflection of sunlight. So we only see reports on effects that emphasize the temperature changes, but not on the ones that slow it down, even though these should exist in a comparable number.
I am wondering about the same thing. What does that mean?
We do not know what is inside black holes, and we do not know what is outside the universe. Maybe the universe is inside a black hole, and the big bang is something that happens within every black hole?
Faster cars have a built-in speed limiter for insurance reasons. But it is set to 250km/h (155 mph), so 70mph is a joke.
We have a discussion about introducing a 130km/h speed limit like every two years though. But this never gets supported by a majority.
I was reading about that test, the power density was comparable to the power density of solar radiation.
Made me wonder how much that receiver would cost, and if they shouldn't just build solar cells in that area instead.
But if they look for new jobs both the workers and the employer are loosing because the workers are trained for this job. The employer needs to train new people which will cost time, and the people will make mistakes. The employees need to get trained for a new job, which makes them less valuable than they are now.
Am I the only one who thinks about the Pioneer anomaly after reading this article?
If there is a constant density of dark matter in the solar system it will have a too small effect on Neptune to be detected. When moving further away from the sun the effect of the dark matter becomes stronger. So if we want to detect its gravitation we have to go as far away from the sun as possible. We should see something like the Pioneer anomaly, but we probably have to send a probe much farther out to detect any effect.
Slashdot Mirror
There was no way to burn CDs at home in 1990. Just take a look at the Wikipedia article on CD-R.
A 1990 CD writer was the size of a washing machine and costing $35000. The first recorder under $1000 came out in September 1995.
Cyber attacks can cause large damage without much risk.
That physical attack was just stupid. It can't do much damage since it hits only one power plant, and the attacker can be caught moreeasily.
Don't bioses have master passwords anymore?
People who have empathy and consideration for others can make dispassionate decisions when necessary, or at least many of them can.
Psychopaths have empathy, they can just turn it off.
Good point that people with empathy can make dispassionate decissions when needed. I would say intelligent people can do that normally.
Makes me wonder what is so special about psychopaths, maybe that they turn their empathy off more regularly, and more easily?
Yes, it is more obvious in classical electrodynamics. For all waves and electromagnetic fields the superposition principle can be applied because the Maxwell equations are linear. This means that if you add any fields or other waves to an incoming wave you can describe the result mathematically as the sum of the incoming wave and whatever you generate.
According to the Maxwell equations the incoming wave is influenced by susceptibility and permeability of the materials it is going through, and by charges and currents. But waves and fields are just added to the fields of it, they do not change the original wave. So to compensate changes in a wave you have to add a wave that compensates the changes, and this wave must be actively adapted to the incoming wave.
So "the ability of electromagnetic fields to redirect or scatter waves of energy" means that they just send out electromagnetic waves that interfere with the waves around the object? Was already wondering since when electromagnetic fields can redirect electromagnetic waves. That only works in Star Trek.
Obviously the microphone of a standard laptop is good enough.
If they use a compiler that is older than Truecrypt they would avoid that the compiler could insert any code specifically into Truecrypt.
Truecrypt 1.0 is from February 2004, Visual C++ 1.52 is from the Nineties, so if someone still has an old copy they should be safe.
They even do the same in Europe. This is so absurd.
My thought was that the women painted this while being at home, to show young children what the men are doing when they are away.
The efficiency of the lasers could be increased by replacing the flash light bulbs pumping it with laser diodes, from about 1% to up to 20%. This also increases the cost a lot though.
He should call it radiation pressure, not light pressure, because of the different wavelength of x-rays. But the problem is the same, physically he is correct.
At least they did not convert 11 million kilometers to 6,835,080 miles
Well, yes and no, it also depends on the field what term is used. Astronomers always name it gamma radiation, while physicists from the field of elementary particles and accelerators use the term gamma radiation only for radiation coming from the nucleus. X-ray radiation is used to specify the wavelength range, for any other source.
Doesn't work with such low light intensities
Never heard that the CCC belongs to Anonymous.
I think this shows one big problem in climate science and in science in general: There are only certain things that get funding, and there is no incentive to research other things that are as important and interesting.
Climate science gets funding for research into things that are potentially dangerous. So they look for effects that make climate change worse. But they would never get much attention for a report on a mechanism that slows down the temperature rise, like growing antarctic ice that will increase reflection of sunlight. So we only see reports on effects that emphasize the temperature changes, but not on the ones that slow it down, even though these should exist in a comparable number.
I am wondering about the same thing. What does that mean?
We do not know what is inside black holes, and we do not know what is outside the universe. Maybe the universe is inside a black hole, and the big bang is something that happens within every black hole?
Faster cars have a built-in speed limiter for insurance reasons. But it is set to 250km/h (155 mph), so 70mph is a joke. We have a discussion about introducing a 130km/h speed limit like every two years though. But this never gets supported by a majority.
I was reading about that test, the power density was comparable to the power density of solar radiation.
Made me wonder how much that receiver would cost, and if they shouldn't just build solar cells in that area instead.
But if they look for new jobs both the workers and the employer are loosing because the workers are trained for this job. The employer needs to train new people which will cost time, and the people will make mistakes. The employees need to get trained for a new job, which makes them less valuable than they are now.
This seems to be a time lapse video, and it is not clear how much it is sped up.
Do you know a better offer for something like this?
Am I the only one who thinks about the Pioneer anomaly after reading this article?
If there is a constant density of dark matter in the solar system it will have a too small effect on Neptune to be detected. When moving further away from the sun the effect of the dark matter becomes stronger. So if we want to detect its gravitation we have to go as far away from the sun as possible. We should see something like the Pioneer anomaly, but we probably have to send a probe much farther out to detect any effect.
Black holes?