willyengland's latest activity

I'm a layman in this field. In my opinion, there's a difference between expressing a probability as 0.1234 and as 0.000001234. The...

Then there will be the problem that Mars will be contaminated with biological material.

On November 13, 2026, Voyager 1 Will Reach One Full Light-Day Away From Earth - nearly 5 decades after it was launched...

NEW ELEMENT ADDED TO THE PERIODIC TABLE: ADMINISTRATIUM Investigators at a major research institution have recently discovered the...

Let's say I have two beams, one with protons and one with electrons, traveling parallel to each other at the same speed. I'm looking at...

Multiphoton imaging is a well established tool. Here's a review for GI docs, for example...

A multi-photon absorption might happen I think under extreme conditions like a strong laser.

You are right. That's what I meant.

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...

Today's APOD - Up from the Earth: Gigantic Jet Lightning

Btw, the continued fraction with all ones is the golden ratio and it converges extremely slowly. In this respect it is the most...

A surface with at least one null tangent vector everywhere on it. Light cones are another example. In flat spacetime, at any instant...

What is a "null surface"?