berkeman's latest activity
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berkeman replied to the thread Hi, I'm CosmosSphere.Welcome to PF; it's good to have you here. It's great that you have such strong interests in STEM at a young age. :smile: Please be...
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berkeman reacted to mfb's post in the thread Artemis 2 launch - humans return to the Moon after 54 years with
Informative.
NASA stream for reentry (landing in ~1.5 hours) A steeper angle will lead to a higher peak heat load but the heat shield is designed... -
berkeman replied to the thread Graduate How is literally EVERYTHING in physics not binary?.After some cleanup, the thread will remain closed.
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berkeman replied to the thread Graduate How is literally EVERYTHING in physics not binary?.Thread is closed for Moderation.
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berkeman reacted to gmax137's post in the thread Graduate Does a moving particle count as a wave? with
Agree.
@berkeman you beat me to it. An operational definition of "a wave" is, "a phenomenon consistent with the wave equation." -
berkeman replied to the thread Graduate Does a moving particle count as a wave?.Apologies if this has been asked already in this thread, but how do you apply the Wave Equation to your mass density discontinuity (your...
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berkeman reacted to Herman Trivilino's post in the thread Graduate Does a moving particle count as a wave? with
Like.
No. A theory is an attempt to describe the way Nature behaves. The words you use to describe that behavior have no effect on the theory... -
berkeman replied to the thread Kitten Lovers: Cuteness Overload.
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berkeman reacted to gleem's post in the thread High School Can alpha radiation make other materials radioactive? with Informative.
To give you an idea of why α particles are inconsequential to activating materials, in the lab to get signifcant amont of interactions...
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berkeman reacted to renormalize's post in the thread Graduate Free‑Carrier Index Modulation in Thin Transparent Layers at Visible Wavelengths with Informative.
I'm by no means expert on this topic, but doped-silicon optical modulators can apparently accomplish this (although not necessarily in...
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Such is Mathematics.
