It seems to me that, by definition, in the course of “230 million years” our valiant electrons should be able to cross “10 million light years” more than twenty times each.
I mean, there is some weird math in astrophysics but I don’t think this is it. This is the easy stuff.
Yeah, I don’t get it. Generally, “relativistic” in terms of speed means that you’re going at least 0.1c, but going 300,000 ly in 230 million years is only 0.0013c.
Instead of, like, half the planets in the universe being named “Gliese,” and then a number, and then a letter between b and f, I guess it’s time for all those planets to get proper names now?
0 voters
He will actually invent a Latin form of “Trump” and use that. He will proclaim this with a big smile on his face because he thinks it’s clever and funny. His base will smile too.
Trumpus?
Donaldula?
Manula?
Biggus Dickus?
Trumpaxiumus?
Putting on my amateur forgot-more-than-I-learned physics hat, with a hearty squint to try to read between the lines of the articles and guess at an explanation.
There are two large emitters (galaxy clusters) emitting stuff. The stuff has energy/momentum (obviously because otherwise it would be sitting still instead of being emitted). If the stuff from source A bangs into the stuff from source B hard enough (at least magnetically), that collision will emit energy, some of which might be in the form of radio waves, some of which might be distinguishable from the cosmic background even from a billion light years away.
They said they detected it via radio waves, so that could indicate some high-energy banging going on between A and B’s stuff.
However, the energy emitted from the stuff banging would cause the stuff to get tired out and slow down due to conservation of energy. So if there are radio waves coming from near one of the sources, the stuff that emitted them will be too tired to bang hard enough to emit more radio waves strong enough to be detectable after about 300,000 light-years of banging (which could take 230 million years), even if it travels the rest of the way to the other source and vice-versa. (A guess that shows how much I’ve forgotten about physics: Even if it was still traveling near light speed, the loss of energy should cause its spin/spiral/whatever to slow down too much to emit detectable radio waves as it goes.)
But they are detecting the signs of hard banging all down the line. So the question becomes why is there high energy banging going on all down the line, when the bits should tire out from all the banging that they did early in the line?
That’s how I read it anyway.
Red Bull?
This is going to generate a lot of discussion in computer engineering faculties.
Wow. Makes you start to wonder and re-think about everything. How wrong have our assumptions been in other, similar ways?
The silly thing is this is a standard function in a lot of more recent search engines.
Coders must have a connection to the work being done with their product. The 3rd-party model of software development must be murdered.
Domain knowledge is critical. Of course, it can be considerably more expensive to hire someone who has both the right domain knowledge and the right software development skills. But at the least someone with that knowledge should be handling specifications, product management, and acceptance testing.
Happily, my company is full of domain experts that I can go to when I have no idea how to tell what would or wouldn’t be valid data or how an actual user would actually use the software. That’s very unusual, though.
A piece that truly belongs in a thread entitled “Possibly untrue science news”:
they’re not really sculpting “tools” out of stone, they’re just bashing things with rocks
Rock on!
Wait until they figure out flint knapping. Then we’ll be sorry.
One of David Attenborough’s movies shows South American monkeys carefully picking stones to crack nuts, assembling everything in mortars ground from the rock, and smashing nuts to Thus Spake Zarathustra.
Different population.
It’s still a long way from Oldowan pressure-flaking.
We’ve mined out most of the best flint and obsidian deposits, for example there’s a steady decline in blade sizes in the Americas from Clovis to Folsom to microflakes, and as long as plastic is more common than glass, they’re screwed.
“We’ll be saying a big hello to all intelligent lifeforms everywhere and to everyone else out there, the secret is to bang the rocks together, guys.”
Beat me by six minutes