Notices by eSagan 🇮🇳 (crackurbones@qoto.org)

Scientists at Purdue University have created the world's fastest-spinning human-made object and the most sensitive torque detector by suspending a nanoparticle in a vacuum with a laser, and then using a second laser to test its torque sensitivity.
https://www.nanowerk.com/nanotechnology-news2/newsid=54377.php

Scientists discover microbe which could explain life on earth https://t.co/z4kQaNzgbJ

https://twitter.com/MailOnline/status/1217773017226457091?s=19

🇱🇰 Nobody knows how many leopards prowled Sri Lanka before its bloody civil war, but about 70% of the animals' habitat has been destroyed, says one conservationist -- and that's not the only threat. Here's how she plans to save them: http://cnn.it/35WvWLH #CallToEarth

https://mobile.twitter.com/cnni/status/1217768799149207554?s=19

#SriLanka #Conservation #Environment #Wildlife #Leopards

🇳🇴 Hvordan stjernene i Karlsvogna er forventet å flytte seg neste 50000 år.
https://no.m.wikipedia.org/wiki/Karlsvognen

This Human Brain Tissue Survived Intact For 2,600 Years, And We May Finally Know How
https://www.sciencealert.com/this-study-could-explain-how-human-brain-tissue-remained-intact-for-2-600-years

Someone made a flag of #Norway with the NOR gate.
https://cybre.space/@haskal/103434041959654589

A computer made from DNA can compute the square root of 900
https://www.newscientist.com/article/2228461-a-computer-made-from-dna-can-compute-the-square-root-of-900/?utm_source=digg
Chunlei Guo at the University of Rochester in New York state and colleagues developed a computer that uses 32 strands of DNA to store and process information. It can calculate the square root of square numbers 1, 4, 9, 16, 25 and so on up to 900.

Scientists Built a #ParticleAccelerator Smaller Than a Human Hair on a Chip
https://www.vice.com/en_us/article/y3mgn5/scientists-built-a-particle-accelerator-on-a-chip-smaller-than-a-human-hair?utm_source=digg

Group delay and phase delay
https://dspillustrations.com/pages/posts/misc/group-delay-and-phase-delay-example.html
#signalprocessing

A new study from Princeton physicists successfully uses boron powder to control nuclear reactions in plasma.

https://bigthink.com/surprising-science/physicists-discover-how-to-safely-create-star-power-on-earth.amp.html

#Ramanujan’s legacy used in #signalprocessing, #BlackHole physics

https://www.thehindu.com/sci-tech/science/ramanujans-legacy-used-in-signal-processing-black-hole-physics/article30367891.ece/amp/

#TIL Pluto was discovered using a machine called a blink comparator. This machine dates back to 1904 and — like many things — has been superseded by modern technology. In 1930, scientists knew there was something pulling the orbits of the planets but they didn’t know where it was.

The blink comparator helps you find something that moves by showing you two photographic plates in quick succession. Anything in the same spot on both plates appears stationary. Anything moving in the frame will stand out as it appears to jump from one spot to another.

https://hackaday.com/2019/12/06/chandrayaan-2-found-by-citizen-scientist-reminds-us-of-pluto-discovery/

Our universe is governed by four fundamental forces. At least that's what physicists have long thought.

Now, however, new research suggests that there's a fifth force, a discovery that could upend much of modern physics.

https://www.livescience.com/amp/fifth-force-could-exist.html

Saving the #whales is more important than planting trees to stop #climatechange. This is why

https://www.weforum.org/agenda/2019/11/whales-carbon-capture-climate-change/

If we helped whales return to their pre-whaling numbers of 4- to 5 million (up from 1.3 million today), researchers say they could capture 1.7 billion tonnes of CO2 annually - with the cost of protecting them at just $13 per person a year.