Recent content by Zeke137

Here's my favorite COVID charting and mapping site, featuring among others this particular page with emphasis on virus variants by region, and by country+date: https://www.coron...ants.php Nice site, only a couple of months old, but already with some very informative charts and maps.

You started this thread, and people came into try and help out. Plenty of people here, some of whom are practising scientists, and others who have university degrees in relevant scientific areas, have tried to help you out here. But it would appear that you are not at all prepared to accept the...

Too many facts and too little fake news for your taste?

I think it might be helpful at this stage to point out how telescopes actually make the beautiful bright images of deep-sky objects like the Andromeda Galaxy, or the Orion Nebula, or the Crab Nebula, to name but a few: These objects are pretty faint (they're a long way away), so the amount of...

Nice list of point-like or disk objects with no indistinct or fuzzy regions extending well beyond them. Comparing apples with smoke will get us nowhere.

Well, actually I'm not saying it as such. The background photo comes from Flickr - https://live.staticflickr.com/7016/6467038861_01b1efebf9_b.jpg - so maybe we should all take this up with the person who took the photograph. I do note that neither the image of the tree nor the stars appear to be...

Ask a question that illuminates or adds to the discussion, and you'll get a sensible answer.

OK, so here's another image, this time from NASA's Astronomy Picture Of The Day site, which overlays an image of the Moon on an image of the Andromeda Galaxy as recorded by a decent telescope, so the galaxy appears much brighter and wider than when seen with the naked eye...

Ummm, in what way "no way", dude?

So, here's another picture which shows the Andromeda galaxy as it would appear to the naked eye in a not very dark sky - it's the fuzzy blob at the center of the red ellipse. The full extent of the outer regions of Andromeda are outlined in red, and Andromeda's dwarf satellite galaxies M110 and...

So, a light year is a measure of distance, and it's the distance light (visible light, radio waves, infrared, microwaves, X-rays, gamma rays) will travel in one Earth year. It's about 5.88 trillion miles (9.5 trillion km) as the crow flies. When people say an object is 13 billion light years...

Thanks for the links - the paper you link to is, unfortunately for those like myself who have no access to such things, behind a paywall. Luckily, though, arxiv has a copy for free at https://arxiv.org/pdf/1808.00540.pdf - it's the same paper which, incidentally, was originally received by PRL...

The group is led by Andrew Geraci, an associate professor of physics and astronomy in Northwestern’s Weinberg College of Arts and Sciences . It would appear that the sensors employ optically-trapped microspheres or microdiscs, the positions of which can be measured to microns or better as these...

Your metadata has one data point, so hardly sufficient to spot trends. But looking at the paper (it's available on arxiv), one notes that it has hundreds of authors - I didn't count how many (I estimate 1200), but the list of authors and their affiliations is enough to fill six whole pages! One...

The paper you link to can hardly be called new, since it was published in November 2018. Furthermore, the paper presents no new data from the LIGO/Virgo collaboration (LVC), but rather presents some new tests of GR, using data from the GW170817 binary neutron star coalescence event which...