willyengland's latest activity
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Wwillyengland reacted to DaveE's post in the thread I Why can’t photons “pile up” to eject an electron? with
Like.
Multiphoton imaging is a well established tool. Here's a review for GI docs, for example... -
Wwillyengland replied to the thread I Why can’t photons “pile up” to eject an electron?.A multi-photon absorption might happen I think under extreme conditions like a strong laser.
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Wwillyengland replied to the thread I Potential biosignature found in Mars rock.You are right. That's what I meant.
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Wwillyengland replied to the thread I Potential biosignature found in Mars rock.The discovery is nothing new. It's now being brought back to light in order to possibly avoid the feared budget cuts. Mars Sample Return...
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Wwillyengland reacted to Borg's post in the thread Our Beautiful Universe - Photos and Videos with Like.
Today's APOD - Up from the Earth: Gigantic Jet Lightning
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Wwillyengland replied to the thread I Useless continued fraction for 1.Btw, the continued fraction with all ones is the golden ratio and it converges extremely slowly. In this respect it is the most...
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WA surface with at least one null tangent vector everywhere on it. Light cones are another example. In flat spacetime, at any instant...
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Wwillyengland replied to the thread B How can a black hole absorb matter?.What is a "null surface"?
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Wwillyengland replied to the thread I Could fast radio bursts be alien radar signals?.New article: https://iopscience.iop.org/article/10.3847/2041-8213/adf29f The observations add evidence to a leading theory that...
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Wwillyengland replied to the thread I Eddington’s margin of error.Here is the relevant article: https://pubs.aip.org/physicstoday/article/62/3/37/395000/Testing-relativity-from-the-1919-eclipse-a The...
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Wwillyengland replied to the thread A Crisis for Newly Minted CompSci Majors -- entry level jobs gone.Think of AI as software. You have to deal with software and how to use it in your studying. It may take years to be really good in using...
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Wwillyengland replied to the thread AI vs. German Physics Olympiad.AFAIK not even pocket calculators are allowed in those olympiads. How did they do it?
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Wwillyengland replied to the thread Solubility of MgSO47H2O in water.A quick search point me immediately to...