151–160 of 222 posts
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You can carry exactly (or roughly) as much energy in the form of antimatter as you would energy in the form of fuel.
The problem is that a tiny leak will eat away your spacecraft, thereby making the situation worse.
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The mention Dan Brown in the article! This book occupies a special place in my heart and I was glad to see it mentioned.
Not being funny but I only ever see Dan Brown mentioned in a mocking tone. I've genuinely no idea, but are the books actually good in some sense?
Stop, driver should have license for hauling antimatter and as far as I believe no one is giving those out. That’s major offense in trucking industry.
I'm glad we have an expert on Swiss commercial trucking regulations here.
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There are a lot of completely random statements about how much a gram costs floating around out there. Anywhere from $60T to $3,000T. According to, Michael Doser, a prominent particle physicist at CERN, "one 100th of a nanogram [of antimatter] costs as much as one kilogram of gold." S: https://www.abc.net.au/news/science/2023-02-19/antimatter-fa...
> According to, Michael Doser, a prominent particle physicist at CERN, "one 100th of a nanogram [of antimatter] costs as much as one kilogram of gold." Those aren't comparable costs. The cost given for antimatter is the cost of producing it from nothing. The cost given for gold is the market price of buying gold that already exists. Consider the cost of producing one kilogram of gold from nothing. (Consider also the…
I definitely was expecting "transported" to be some kind of teleportation when I clicked this link. Too much sci-fi!
Was kind of disappointed to see it was transported via 18-wheeler.
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Which seems suprisingly high given that it's 92 protons worth of antimatter!
Definitely, I've had a mosquito hit me while flying and you can actually feel it hit your skin.
Either nothing would happen, or like molten salt in water, the joule currents would be instant and drive it all to go boom in a big way. I wonder which.
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> If you're ok with the looming threat of total annihilation. Don't you have that problem with any energy-dense fuel? It's just that it doesn get more dense than that, so you can be very space and weight efficient. It's like everybody saying that a hydrogen car is a rolling bomb because of the energy stored in the hydrogen. Well, sure, but gasonline has just as much energy stored. Which is the whole point of fuel. To…
Antimatter is a completely different story. The difference is that antimatter annihilates with any normal matter that it comes into contact with. This means you can't just put it in a tank, the way you can with hydrogen. You can't e.g. combine it with some metal to make a metal hydride to make it safer to store, the way you can with hydrogen. At an absolute minimum, you need extremely strong magnetic confinement and…
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When we're talking scales like 10^-23, "one" and "one sixth" are comparable enough to warrant an "approximately".
I'm not sure! One is just barely within human scale and one isn't. I think I could feel the impact of a mosquito on a sufficiently sensitive patch of skin. I'm not sure I could do the same with one sixth of a mosquito. Its like the difference between something I can lift (100 lb) and something I definitely cannot lift (600lb)
In a similar vein a 20 gallon fishtank and a small bathtub are approximately the same despite that I can't actually fit in the 20 gallon fishtank myself.