BillTre's latest activity

How are you defining a natural group?

The counter argument is that group theory was "invented". And that, although symmetries appear in nature, the concept of mathematically...

What was only Imaginary until recently, now is Real. That is, now I=R. Hence, an anagram of PUTIN is TRUNP.

Now we get freezing rain: Nikon D810 + 55mm micro nikkor @ f/11, 3s ISO 200. I timed it to capture a car driving by. The water...

All they did was show that you could put unoxygenated perfluorocarbon liquid in someone's butt for 60 minutes without undo harm. No...

Not so for the biological sciences, where understanding the "whys" leads to a better understanding of the organisms involved. Why does...

Microgravity reshapes bacteriophage–host coevolution aboard the International Space Station Abstract: This uses well developed...

I wonder how many covid lives this could have saved if such devices were mass produced. Seems rather simple, yet brilliant. I wonder if...

Here, it's the same sequence, but what is done in 7, 8, 9, 10 is accelerated a bit, so it's done in 7, 8, 9. Like the US, not all...

I'm shocked that anyone would believe anything on that news channel.

We get US Fox News here, too. I know what you mean. I mostly watch for comic relief and say, "Pass the popcorn." Thanks Bill

That would be @wolram, as already pointed out by Greg. His nick was Marlow in reverse.

In the 1970s, my public high school had calculus courses and I believe a year beyond that. Taking the courses was a decision made about...