Anonymous_Leaker@lemmy.world to Today I Learned@lemmy.worldEnglish · edit-23 days agoTIL that the center of a nuclear explosion can reach temperatures of approximately 100 million degrees Celsius.www.ncbi.nlm.nih.govexternal-linkmessage-square21fedilinkarrow-up173arrow-down10
arrow-up173arrow-down1external-linkTIL that the center of a nuclear explosion can reach temperatures of approximately 100 million degrees Celsius.www.ncbi.nlm.nih.govAnonymous_Leaker@lemmy.world to Today I Learned@lemmy.worldEnglish · edit-23 days agomessage-square21fedilink
minus-squareLemmyTellYou@lemmy.cafelinkfedilinkEnglisharrow-up10·3 days agoHow do they know this? How would you even measure temperature past a certain point
minus-squareSuccessful_Try543@feddit.orglinkfedilinkEnglisharrow-up32arrow-down1·edit-22 days agoThey measure the wavelength of “thermal” photons and then use e.g. Wien’s law to calculate the temperature that has caused their emission. Edit: T = 10^8 K correspond to f = 10^18 Hz which is in the X-ray part of the spectrum.
minus-squareAnonymous_Leaker@lemmy.worldOPlinkfedilinkEnglisharrow-up18·3 days ago“Scientists determine that nuclear explosions reach temperatures of approximately 100 million degrees Celsius through theoretical physics, computer modeling, and spectral analysis of diagnostic data.”
How do they know this? How would you even measure temperature past a certain point
They measure the wavelength of “thermal” photons and then use e.g. Wien’s law to calculate the temperature that has caused their emission.
Edit: T = 10^8 K correspond to f = 10^18 Hz which is in the X-ray part of the spectrum.
“Scientists determine that nuclear explosions reach temperatures of approximately 100 million degrees Celsius through theoretical physics, computer modeling, and spectral analysis of diagnostic data.”