. . . and that, at about the suggested time for an up-turn. Astronomy telegram clip: >>The Fall and Rise in Brightness of Betelgeuse ATel #13512; Edward Guinan, Richard Wasatonic (Villanova University),Thomas Calderwood (AAVSO) and Donald Carona (Texas A& M University) on 22 Feb 2020; 12:59 UTCredential Certification: Edward Guinan (edward.guinan@villanova.edu) As previously reported (see Read More…
UD’s Sci-Tech watch
The spreading of corona virus
UK’s Daily Mail reports: They also provide a map: A concern is that mild cases are masked under the common cold, and that the incubation period may be up to four weeks or thereabouts, not the fortnight that has been used hitherto. They are not finding a “patient zero” for some of these outbreaks, which Read More…
Betelgeuse watch, 2: Has it finally stopped dimming?
Mebbe, for now. According to Forbes: >>The red supergiant star Betelgeuse appears to have finally stopped its unprecedented dimming, Villanova University astronomer Edward Guinan told me [ Bruce Dorminey] this afternoon. He says that although he’s unsure what has caused its strange brightness fluctuations, Betelgeuse is not likely to undergo a supernova explosion anytime soon. “The Read More…
Betelgeuse dims, astrophysicists speculate
Since about October 2019, Betelgeuse (the bright reddish star at Orion’s shoulder in the brightest constellation in the sky that is about 600 – 700 ly distant from us) has begun a sharp dimming that has now gone beyond what has been seen in modern observations. As of the end of January, it was down Read More…
VIDEO: Digital unwrapping and reading of the En Gedi OT scroll
News has posted on this recent technological development. It is worth taking a couple of minutes to watch the video describing and imaging what was done using AI technologies: Fascinating, what 3-d scanning can do. It also of course corroborates the known result from the main Dead Sea Scroll finds, that the OT text was Read More…
The growth of the Internet, 1990 – 2019
Of general interest — and especially observe the rise of China, India and Nigeria: Food for thought. END PS: Jawa points to some interesting points of data with images worth highlighting. First, number of sites (where approx. 200 mn are regularly active): Likewise, it is noted by tekeye that “[d]espite there being over 1.5 billion Read More…
The Code 1202 glitch during the LM descent to the Moon
Why did the LM’s “mini” computer throw a restart glitch during the descent? Eyles — who wrote the code — tells the story: We are here discussing the LM’s mini computer, which used IC’s to effect an unprecedented small size (and “only” 70 lbs, in a box Eyles describes as 1 ft x 2 ft Read More…
Apollo 11 Moon landing + 50 years today
A moment of triumph and a giant leap for mankind. Live stream: Let us remember and let us learn. Hopefully, back to the Moon then onward to Mars, the Asteroid belt and solar system colonisation across this century — our real hope. And, a positive focus going forward. END
Are high intensity and/or high blue light “white light” LED’s damaging to our health?
Of course, any high intensity light source is potentially damaging to the retina; that’s why we should not look directly at the sun or try to view a solar eclipse directly. Electric arc welding and lasers — including laser pointers — are also hazardous. Retinal burns are painless and permanent. It is believed that that Read More…
Moon first, then Mars — a path to Solar System colonization?
Some dates are being discussed in a May 18th 2019 Phys-dot-org article: “The Moon is the proving ground for our eventual mission to Mars,” NASA administrator Jim Bridenstine said at a conference this week. “The Moon is our path to get to Mars in the fastest, safest way possible. That’s why we go to the Read More…
AI and hopes for fusion power
A recent news item suggests that AI may help bring fusion power to the table on the long used but challenging Tokamak toroidal reactor architecture. This would be a major positive use of AI technology, if it proves sufficiently reliable: Artificial intelligence (AI), a branch of computer science that is transforming scientific inquiry and industry, Read More…
Have Scientists in China “brain hacked” monkeys?
. . . By inserting human genes? The UK Daily Mail summarises news reports making the rounds: The report details: A new study into the unique evolution of human intelligence has raised ethical concerns after Chinese scientists implanted human brain genes into monkeys to boost their development. Researchers inserted human versions of MCPH1, a gene that Read More…
SCI-TECH NEWSWATCH: Israel’s Beresheet spacecraft has a loss of comms and fails in a Moon landing attempt
The newly re-elected Prime Minister promises that Israel will persist. See Jerusalem Post for details (vids are in Hebrew): Israel’s Beresheet spacecraft fails to land safely on the moon Prime Minister Benjamin Netanyahu, who was at hand to watch the landing, said that Israel will continue to try landing on the moon. By JERUSALEM POST Read More…
BREAKING NEWS EVENT: First images of a Black Hole Event Horizon announced
A long-awaited development, thanks to an array of radio telescopes: BBC reports: Astronomers have taken the first ever image of a black hole, which is located in a distant galaxy. It measures 40 billion km across – three million times the size of the Earth – and has been described by scientists as “a monster”. Read More…
Origenes finds a handy “big number” calculator
In the isolated islands of function thread, Origenes cited the exact value of one of a big number. GP asked, how did you do it, as Excel and R are overwhelmed at that sort of level. Origenes answered: Origenes, 104: >> . . . I found this website: https://defuse.ca/big-number-calculator.htm >> Now, I have routinely used Read More…