162 karma · joined May 22, 2023
“The proton is an incredibly complex particle that physicists are still working to fully understand. Experiments over decades have revealed that the proton is not just three quarks, but contains a sea of transient gluons and quark-antiquark pairs. The HERA accelerator provided evidence of this "gluon dandelion" structure by detecting low-momentum quarks and antiquarks emerging from gluon splitting. Most recently, machine learning analysis of thousands of proton snapshots found traces of heavy charm quarks within the proton, suggesting its makeup is a quantum mixture of different quark states. Future experiments like the Electron-Ion Collider aim to map out the spins and 3D structure of quarks and gluons inside the proton.
One interesting finding highlighted is the recent discovery, through machine learning analysis of past proton data, that the proton contains traces of heavy charm quarks, implying its composition involves different quark combinations in a quantum superposition. This suggests the proton's makeup is more complex than previously understood.”
“Amelia Earhart went missing in 1937 during her attempted circumnavigation of the globe when she failed to find Howland Island, as intended radio navigation assistance from the Itasca ship was compromised by issues with her plane's radio equipment. Specifically, Earhart had mistakenly designated 7.5 megacycles as the Itasca's beacon frequency, which was too high for her plane's direction finder to get a bearing from. This prevented her from coordinating with the Itasca. Intriguingly, radio signals later intercepted by stations in the Pacific showed Earhart's plane was still operational for hours after she went missing, suggesting she survived the initial landing but could not be reached due to radio problems. Unfortunately, no definitive evidence of her final fate has ever been discovered.”
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