Summary #200

How long do neutrons live? Physicists close in on decades-old puzzle

nature.com
  • After 15 years of struggling with a measurement discrepancy, physicists might soon uncover precisely how long it takes a neutron to die.
  • Neutrons are stable inside atoms, but on their own they decay in about 15 minutes. Since 2005, there have been two measuring methods which - replicated in various labs across the world - generate results different by 8 seconds.
  • Solving this mystery will help scientists understand how much hydrogen, helium, and other light elements were created in the first few minutes after the Big Bang.
  • They could also hunt for new types of physics, as knowing the neutron’s lifetime would help constrain measurements of other subatomic particles.

Categories

  • Science Science (23) Dark-matter detector observes exotic nuclear decay
  • Psychology Psychology (23) The surprising truth about perfectionism in millennials
  • Cosmos Cosmos (13) From the Lunar far side, China’s rover reveals moon’s hidden depths
  • History History (9) Ancient rock art in the plains of India
  • Society Society (29) Psychedelics' role in beating alcoholism illustrated in LSD, psilocybin study
  • Medicine Medicine (13) End to Aids in sight as huge study finds drugs stop HIV transmission
  • Technology Technology (20) UVM study: AI can detect depression in a child’s speech
  • Nature Nature (13) Wood wide web: Trees' social networks are mapped

Newsletter

Newsletter

Fame 🙌

Bullets.tech - Articles for science lovers shortened to five bullet points. | Product Hunt Embed

We were featured on Hacker News, O'REILLY® Ideas, and Boing Boing.