Although I wanted to punch a hole in the wall when I had to buy a Thunderbolt cable for $50 0_o, there is no reason they should be that expensive but that is Apple pricing for you.
Thunderbolt uses active cables. There is a circuit at each end of the cable which handles the physical transmission. This means the cables will always be expensive, although costs will probably come down if thunderbolt becomes mainstream and economies of scale kick in. It's also a reason why thunderbolt probably won't become mainstream.
Your weight is a result of calories in vs. calories out.
While that's technically true, it misses the problem completely because you ignore why people eat more than they need. People eat because they are hungry. Why would someone with enough body fat to power their sedentary lifestyle for weeks still feel hungry? That's the problem, and there's a ton of evidence that it's screwed up hormonal signalling from a poor diet and lifestyle which makes people hungry when they shouldn't be. Poor sleep patterns is part of the problem, even if an unhealthy diet and lack of exercise comprises the bulk of it.
Moreover, by providing links to infringing material, they are also helping the content owners. They could quite happily download all the torrents, identify the IP addresses of seeders, have the courts issue warrants to identify the seeders from their IP addresses and pursue copyright claims against the individuals. Of course that would be more costly, so lets break the internet so they can increase their profit margins.
To be fair, in this case their prison sentences seem to be somewhat proportional to the money they made from the site.
Only if you think it's reasonable that copyright infringement should be a criminal act. Remember that copyright is an artificail monopoly granted to provide a profit motive, and the only harm infringement does is to profit margins. In a fair legal system, the only reasonable punishment would be a claim for monetary loss settled in a civil suit. Copyright infringement should be treated much like breach of contract, but due to lobbying and corruption, big media have managed to convince government that copyright infringement is theft, which it isn't.
But I've always wondered how we know that the speed of light is the same regardless
This comes from the electromagnetic nature of light. When considered as a wave, light is composed of an oscillating electric field. As the electric field changes it induces an oscillating magnetic field. As the magentic field changes it induces an electric field again, and so on, such that the electric and magnetic fields regenerate each other. According to Maxwells laws, such a wave can only sustain itself at a specific speed: the speed of light. This speed is determined by the permeability and permitivity of the medium it travels in, hence the speed of light varies in different materials.
(I also am not a physicist, but I remember this from school
[Search] [Stop] [Hammer Time!]
As I understand it, it would take an eternity from our point of view for the star to fall in the black hole completely due to the time dilation in the vicinity of the black hole. However, I believe what they're seeing is just the start of the event. A star is effectively a huge nuclear explosion kept in equilibrium by a massive gravitational field. As the star approached the black hole, the gravitational field from the black hole would gradually reduce that of the star on the near side until at some point it would no longer be enough to contain the nuclear reaction. At this point the matter in the star would be explode in the direction of the black hole. This would probably accelerate as the star itself lost mass and hence gravitational field strength. It's the rapidity of this reaction which causes the gamma ray burst, not the process of the matter actually falling into the black hole, which would probably look like a regular accretion disc. I'd guess the whole process would be over fairly quickly.
I'm not an astrophysicist, but this is my hand-wavey explanation of what happened. Hopefully someone better qualified will elaborate, or tell me
I'm writing bollocks
"Kill the Wabbit, Kill the Wabbit, Kill the Wabbit!" -- Looney Tunes, "What's Opera Doc?" (1957, Chuck Jones)