Links for 2022-09-23
The New Meta-Materials for Superlenses and Invisibility Cloaks http://backreaction.blogspot.com/2022/09/the-new-meta-materials-for-superlenses.html
Attractive female students get better grades. They lose this benefit when courses move online. https://www.sciencedirect.com/science/article/pii/S016517652200283X
“We’ve trained and are open-sourcing a neural net called Whisper that approaches human level robustness and accuracy on English speech recognition.” https://openai.com/blog/whisper/
New variant BA.2.75.2 — in studies of serum from recovered covid patients, it shows “profound escape,” evading the antibodies produced from prior infections, and raising “concerns that it may effectively evade humoral immunity in the population.” https://biorxiv.org/content/10.1101/2022.09.16.508299v2
“A rectenna (rectifying antenna) is a special type of receiving antenna that is used for converting electromagnetic energy into direct current (DC) electricity.” https://en.wikipedia.org/wiki/Rectenna
Researchers harvest energy from radio waves to power wearable devices [Published in 2021] https://www.sciencedaily.com/releases/2021/03/210325190246.htm
Samsung debuts TV remote that recharges by capturing radio frequency energy from Wi-Fi router https://techxplore.com/news/2022-01-samsung-debuts-tv-remote-recharges.html
Towards Battery-Free HD Video Streaming: "...we can harvest sufficient energy to enable battery-free 30 fps 1080p video streaming at up to 8~feet. Finally, we design a proof-of-concept prototype with off-the-shelf hardware components that successfully backscatter 720p HD video at 10 fps up to 16 feet." [Published in 2018] http://batteryfreevideo.cs.washington.edu/
Teeny-Tiny Bluetooth Transmitter Runs on Less Than 1 Milliwatt [Published in 2019] https://spectrum.ieee.org/tech-talk/semiconductors/design/teenytiny-bluetooth-transmitter-runs-on-less-than-1-milliwatt
Researchers build a sensor consisting of only 11 atoms that is capable of capturing magnetic waves and consists of an antenna, a readout capability, a reset button and a memory unit. [Published in 2020] https://tudelft.nl/en/2020/tnw/researchers-build-sensor-consisting-of-only-11-atoms/
Researchers shrink a camera to the size of a salt grain: "The new system can produce crisp, full-color images on par with a conventional compound camera lens 500,000 times larger in volume, the researchers reported in a paper published Nov. 29 in Nature Communications." [Published in 2021] https://engineering.princeton.edu/news/2021/11/29/researchers-shrink-camera-size-salt-grain
Throughout history, the most effective combatants have powered to victory on commitment to core values and collective resolve https://aeon.co/essays/wars-are-won-by-people-willing-to-fight-for-comrade-and-cause
Ukraine depends on morale and Russia on mercenaries. It could decide the war https://www.theguardian.com/world/2022/sep/17/ukraine-depends-on-morale-and-russia-on-mercenaries-it-could-decide-the-war
Germany has been ignoring Russian crimes for decades for peace and rubles.
- The Russian war crimes during the Second Chechen War happened while Gerhard Schröder was in office.
- When Russia invaded Georgia in 2008, Angela Merkel conveyed her concern and then forgot about it.
- After the annexation of Crimea Germany continued buying Russian gas as if nothing happened.
- The downing of MH17 using a missile launcher supplied by the Russian military also didn't make a dent.
- Massive Russian hacking attacks against the German economy and the German parliament were ignored.
- Assassinations using plutonium and the deployment of a chemical weapon in the UK, an allied country, had no consequences.
- Russian war crimes in Syria were shrugged off.
But this time diplomacy will work! Peace for our time!