125 years ago #Today (https://nitter.moomoo.me/search?q=%23Today), Marie Curie observed a meeting of the French Academy of Sciences, where one of her teachers, Prof. Gabriel Lippmann announced her discovery of substances much more radioactive than uranium. She was 30
\[read more: buff.ly/2EFJbCQ (https://buff.ly/2EFJbCQ)\]
https://nitter.moomoo.me/Rainmaker1973/status/1646038674486722560#m
68 years ago #Today (https://nitter.moomoo.me/search?q=%23Today), Jonas Salk's polio vaccine was declared safe and successful, Salk was hailed as a "miracle worker" and the day almost became a U.S. national holiday
\[read more: buff.ly/2Jjhkgt (https://buff.ly/2Jjhkgt)\]
https://nitter.moomoo.me/Rainmaker1973/status/1646033886583967744#m
62 years ago #Today (https://nitter.moomoo.me/search?q=%23Today), Yuri Gagarin was the first man to fly in space. "First Orbit" is a movie available in 30 languages that recreates the pioneering first orbit with shots from the International Space Station
\[full movie: buff.ly/2v9VgR9 (https://buff.ly/2v9VgR9)\]
https://nitter.moomoo.me/Rainmaker1973/status/1646032831607439360#m
The Falkirk wheel in Scotland is the world's first and only rotating boat lift
\[read more: buff.ly/2IHrXfe (https://buff.ly/2IHrXfe)\]
\[full video, HD: bit.ly/2uBMAyU (https://bit.ly/2uBMAyU)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645849649775886336#m
This collision between two cherries depicts a fundamental property of classical mechanics: conservation of momentum
\[read more: bit.ly/1ICtvkp (https://bit.ly/1ICtvkp)\]
\[📹 vimeo.com/139653312 (https://vimeo.com/139653312)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645829686218326024#m
Studies have found that babies tend to develop better when they find their mother cheerful and happy. Laughing helps the baby develop in a better way.
Yet, the mechanics of this is definitely seismic
\[📹 lilblessings4dhd: buff.ly/3zUvRta (https://buff.ly/3zUvRta)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645819854543355906#m
How The Q created a bike with fully working square wheels (capable of making turns)
\[full video: buff.ly/3ZXCRAf (https://buff.ly/3ZXCRAf)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645813733225291777#m
This orchid is named like a vampire, but it strongly resembles a monkey's face
\[read more: bit.ly/2tZlCUw (https://bit.ly/2tZlCUw)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645721981461880832#m
People in a 3D wrap around visual booth can experience vertigo and a loss of equilibrium as their brains receive conflicting signals from their bodies and senses
\[read more: buff.ly/43h8Z4R (https://buff.ly/43h8Z4R)\]
\[📹 buff.ly/402PFW2 (https://buff.ly/402PFW2)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645712522656325636#m
No matter how you choose to place the red points on the circumference, the three blue points will lie on a straight line. This is Pascal’s theorem
\[source, archimedes-lab.org (https://archimedes-lab.org): buff.ly/39OHJmY (https://buff.ly/39OHJmY)\]
\[read more: buff.ly/31r1lF5 (https://buff.ly/31r1lF5)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645707906187243523#m
With 891,163 km² of wetlands, Canada has about 25% of the world's freshwater – the largest wetland area in the world. Plus it is surrounded by 3 oceans, and has over 2 million lakes
\[read more: buff.ly/2xBW1Rg (https://buff.ly/2xBW1Rg)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645702585137987584#m
Due to a political climate becoming increasingly hostile to scientists and teachers, in 1954 Einstein wrote were he a young man again, he'd choose to be a plumber or a peddler, to which many plumbing companies responded by making him the honorary plumber buff.ly/3fg6qaC (https://buff.ly/3fg6qaC)
https://nitter.moomoo.me/Rainmaker1973/status/1645698541157773312#m
#Today (https://nitter.moomoo.me/search?q=%23Today) in 1957, a Ryan X-13 Vertijet became the first jet to take-off and land vertically. The airplane made history when it completed a first full-cycle flight at Edwards Air Force Base, California
\[read more: buff.ly/2HezRvc (https://buff.ly/2HezRvc)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645695703815995392#m
At 19.13UT, April 11th, 52 years ago #Today (https://nitter.moomoo.me/search?q=%23Today), the brave crew of the Apollo 13 started their adventurous journey to the Moon
\[read more: go.nasa.gov/1EmGKSA (https://go.nasa.gov/1EmGKSA)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645691890799460353#m
#Today (https://nitter.moomoo.me/search?q=%23Today) in 1943, Frank Piasecki, Philadelphia engineer and Vertol founder, flew his first (single-rotor) helicopter, his PV-2 model, the second successful American helicopter to fly
\[read more: buff.ly/2v2KGvu (https://buff.ly/2v2KGvu)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645690035734294528#m
37 years ago #Today (https://nitter.moomoo.me/search?q=%23Today), Halley's Comet made its closest approach to Earth in this passage, at 63 million kilometers
\[read more: bit.ly/2p4qdiy (https://bit.ly/2p4qdiy)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645681935908216837#m
Restored footage of New York City in 1911. View from the Flatiron Building
\[📹 HistoryColored, HD: buff.ly/3MuSkEK (https://buff.ly/3MuSkEK)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645499171519045632#m
The Ascento robot can move anywhere a human can, even over uneven terrain and obstacles. The robot's capabilities can be used for security services using 360-degree and thermal security cameras
\[video: buff.ly/3KMUFK0 (https://buff.ly/3KMUFK0)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645465530592002068#m
The mamoris chair is a anti-earthquake two-part furniture piece with a head-shaped volume underneath, that when unattached, transforms into a head and neck protector, built out of impact resistant material
\[read more: buff.ly/41hO7Zw (https://buff.ly/41hO7Zw)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645462331755773952#m
Photographer Peter Maier captured this jaw-dropping timelapse of a cloudburst over Lake Millstatt in Carinthia, Austria
\[source, full video, HD: buff.ly/2Mv5n7G (https://buff.ly/2Mv5n7G)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645456885452087297#m