Earlier quoted context omitted.
Two decimal places is a shit ton of precision though. A one inch gap is immense compared to a .01 inch gap.
[flagged]
Surely the precision you need for any measurement is entirely situation-dependent?
CERN gears up to ship antimatter across Europe
111–120 of 188 posts
Re: CERN gears up to ship antimatter across Europe
#112Antimatter is an ultimate explosive. I wonder when we will have bullets with antimatter.
But it isn't. The reaction results in lots of energy but not much of an actual explosion, an explosion being an expansion of gas necessary to propel a bullet. Most of the energy would pass through/into the surrounding matter unconfined. Any gun would get hot and probably melt before the bullet started moving.
The bullet should consist of several parts. Maybe it's more rocket than a bullet.
1. Part that makes it move from the gun to the target. May be ordinary powder or reactive engine.
2. Part that creates an energy when bullet hits the target. That's where antimatter would be useful.
3. Part that converts energy to damage. For example compressed gas which gets very hot, expands and pushes shrapnel to hit things around with very big speed. There are many possibilities, but you need as much energy as possible to create as much damage, as possible in the end.
Re: CERN gears up to ship antimatter across Europe
#113Earlier quoted context omitted.
Just like matter and antimatter, money and anti-money (debt) are created and destroyed together, and cancel each other out. When they come in contact, both are deleted. All money creation, pretty much, is accompanied with creating a corresponding debt. Bankruptcy sometimes deletes anti-money but the 'money' stays. I'm not sure what role interest payments have (I think that's a case of transferring money around). The…
However, there debt that keeps in taking. Such ist the case when in debt with a criminal Organisation. In which case current models are still lacking good explanations.
Aka a perpetual bond. But not always voluntary. A lot of things are like that though, it's a bit like paying a fine or a tax. Just the decision-making process is different.
Re: CERN gears up to ship antimatter across Europe
#114Earlier quoted context omitted.
I've seen this expressed before, but every picture I've seen of CERN just looks like a massive pile of wiring, magnets and generic electronics. So I'm not sure why people react like you do towards it. Is it different from seeing it in pictures? To me things like tokamak fusion reactors or rockets or even places like the massive piles of pipe work outside of SpaceX's launch site feel way cooler.
When I look at that pile, I see hundreds or thousands of devices that need to be working in concert to produce a meaningful result. Devices that need to be triggered exactly when the particle bunch travels by at near speed of light. These devices then generate data that needs to be stored somewhere and in a way that is later useful to the scientists. The complexity hiding within the pile is immense, and that is what…
> These devices then generate data that needs to be stored somewhere
That part appears to severely downplay the absolutely mind-bending amount of data and the timewise density of it.
https://information-technology.web.cern.ch/sites/default/fil...
Re: CERN gears up to ship antimatter across Europe
#115Not sure why, but I found it amusing when they said that the antimatter "reached speeds of over 40 km/hour." Not sure what the speeds are at the point of its creation (there are knowledgeable folks on here who will know, I'm sure), but that must seem sloooooow in comparison.
"We accelerated the antimatter to speeds of over 40 km/h!"
"Good lord, using what technology?"
"A DAF LF 180."
Although i have no idea what actual make or model they used - i was appalled to see that it was not stated in the materials and methods section of the paper. There's a photo in a news piece showing it's a small rigid-sided lorry:
https://home.cern/news/news/experiments/base-experiment-take...
Re: CERN gears up to ship antimatter across Europe
#116Reading around this, i learn that something similar was done in 1993:
https://cfp.physics.northwestern.edu/documents/Transport.pdf
They built a trap, loaded it with electrons as a test, and drove 5000 miles from Martinez, CA (where the magnet was built) to Cambridge, MA. They mention some unexpected trouble after crossing the Rockies - the steadily increasing atmospheric pressure during the descent reduced helium boiloff rate, which reduced helium exhaust flow, and allowed moist air to flow back through the exhaust pipe, resulting in ice buildup. They cleared the blockage, but in doing so, lost the electrons!
I believe that they never repeated the trip with antiprotons. But hopefully the CERN delivery crew have learned from the experience, and won't run into similar trouble coming down from the Alps.
Re: CERN gears up to ship antimatter across Europe
#117A Nobel prize is due to the first person that proves whether exporting antimatter results in negative import duties or not.
Clearly - but in physics or economics?
Re: CERN gears up to ship antimatter across Europe
#118Re: CERN gears up to ship antimatter across Europe
#119Earlier quoted context omitted.
But it isn't. The reaction results in lots of energy but not much of an actual explosion, an explosion being an expansion of gas necessary to propel a bullet. Most of the energy would pass through/into the surrounding matter unconfined. Any gun would get hot and probably melt before the bullet started moving.
The bullet should consist of several parts. Maybe it's more rocket than a bullet. 1. Part that makes it move from the gun to the target. May be ordinary powder or reactive engine. 2. Part that creates an energy when bullet hits the target. That's where antimatter would be useful. 3. Part that converts energy to damage. For example compressed gas which gets very hot, expands and pushes shrapnel to hit things around wi…
That would be a "shell" or warhead rather than a bullet. Bullets are generally inert bits of metal propelled from a barrel. Shells are are filled with explosives to detonate at some point once far away from the launching barrel.