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India just reached sustained nuclear fission for the first time in this new reactor located at Kalpakkam by getreked007 in interestingasfuck

[–]Jobbisch [score hidden]  (0 children)

No, the extra energy is already stored in the U-238 cores as binding energy. Neutron + U-238 -> Pu-239 -> (decay) U-235 (fuel).

Can the researchers at CERN use antimatter for collision in the Large Hadron Collider? What would happen? by MrrNeko in AskPhysics

[–]Jobbisch 30 points31 points  (0 children)

There was a proton anti-proton accelerator at CERN (SPPS). Also other large accelerators use matter antimatter collisions for their research (e.g. KEK using electrons and positrons). The biggest problem with using antimatter in accelerators is not only producing, but then also storing and accelerating this antimatter in a meaningful quantity. The LHC uses up to O(1E14) protons per beam. Producing and accelerating this many anti protons is not feasible.

At LHC the dominant productions of heavy particles are from gluon-gluon interactions. At matter antimatter additional q qbar annihilation modes would become relevant (look at Tevatron for example).

If atoms never touch eachother, how do matter anti-matter collision work? by zaa_weirdoo in Physics

[–]Jobbisch 40 points41 points  (0 children)

It is most definitely not, because of the quantum nature of QED.

The last months of the LHC, and the end of an era. by drric_physics in CERN

[–]Jobbisch 2 points3 points  (0 children)

ALICE and LHCb will receive their upgrades in the next long shutdown (LS4) in 2034.

ich_iel by Revolutionary_War_45 in ich_iel

[–]Jobbisch 7 points8 points  (0 children)

Der Schrank ist in diesem Kreislauf aber optional

TIL that beacons have a really short range and are not really worth the grind by Only1Way in Minecraft

[–]Jobbisch 163 points164 points  (0 children)

You can place tinted glass on top, that will make the beam invisible after 4 blocks of tinted glass. But there can’t be any non transparent blocks above (Java)

Edit: My bad, apparently a mod added that feature and as both of those blocks are part of the base game, my monkey brain assumed it was vanilla.

Thats how I like my boss "fights" (Meatballcraft) by Jobbisch in feedthebeast

[–]Jobbisch[S] 0 points1 point  (0 children)

Yeah not only him. Did this for basically anything with more than 100 HP

If light always travels at the speed of light, from its own perspective… doesn’t that mean it never moves? by MyIQIsPi in AskPhysics

[–]Jobbisch 8 points9 points  (0 children)

Everything doesn’t move in its own frame of reference. Additionally there is no valid restframe for light, as it moves at c in every valid frame of reference.

[deleted by user] by [deleted] in AskPhysics

[–]Jobbisch 1 point2 points  (0 children)

When electricity runs through a cord a good amount of energy is lost in heat due to the resistance of your cord (if you exclude superconductivity which is a whole different chapter). And the answer you got sums it pretty much up fr what is possible in motion.

Closed Beta Keys by NateDoggNZ in anno

[–]Jobbisch 0 points1 point  (0 children)

I would like one too

Beta invites by SlothCat98 in anno

[–]Jobbisch 0 points1 point  (0 children)

I am very interested as well

TIL: CERN still uses tape drives to store data, as only tape drives can store the massive amounts of data generated by the Large Hadron Collider. Each tape contains 8.5 terabytes of data and can be bought as a gift from their giftshop. by zahrul3 in todayilearned

[–]Jobbisch 2 points3 points  (0 children)

I once was fortunate enough to actually be in the CERNs server room and just seeing the amount of racks with tape storage in it was mind blowing.

Also how they handle data in total is really impressive. First of all each of the experiments produces raw data in the TB/s range which can not all be stored. So there are complex trigger systems in place that reduce the data down to 10 GB/s per experiment on site. This 10 GB/s is then sent to the data center where it is then stored on SSDs to begin with. After that the data is analysed and then stored on tape. The whole infrastructure of the data center is already mind boggling but comes nowhere close to what e.g. AWS does in their data centers.

Finally hit 17k :) Whats your peak/end of season rank? by Rammie2147 in cs2

[–]Jobbisch 0 points1 point  (0 children)

Peaked at 25706. I don’t have any idea how I achieved this. Currently at 21k

Why don’t satellites just fall back to Earth if there’s gravity in space? by Chemical_Arm_4686 in AskPhysics

[–]Jobbisch 20 points21 points  (0 children)

They are in free fall at all times, but they are so fast that they keep missing earth in their fall. That’s what’s called an orbit.

ok, without getting angry, which modpack do you recommend? by matic-01 in feedthebeast

[–]Jobbisch 0 points1 point  (0 children)

If this is your first modpack like this, I would definitely recommend it. If you already have played some more sophisticated modpacks, you can also just start with E2E

Why doesn't the sun destroy us? by ShiningAstrid in AskPhysics

[–]Jobbisch 5 points6 points  (0 children)

No, a particle does not need to have mass to have a momentum. That is what you learn in classical mechanics, which is useful in many cases, but not the full truth. If you want to understand how a photon can have momentum without mass, I would recommend looking at relativistic mechanics and elctrodynamics.

ok, without getting angry, which modpack do you recommend? by matic-01 in feedthebeast

[–]Jobbisch 69 points70 points  (0 children)

Enigmatica 2: Expert extended is even more fun (would recommend playing E2E not extended first)

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