The Complicated Relationships of the Microcosmos

video upload by Journey to the Microcosmos

Webb separation from Ariane 5

video upload by European Space Agency, ESA

This real-time video shows the separation of the James Webb Space Telescope from the Ariane 5 launch vehicle and the subsequent solar array deployment.

Webb’s launch on an ESA-provided Ariane 5 rocket was performed by @arianespace on behalf of ESA from Europe’s Spaceport in French Guiana, at 12:20:07 GMT (13:20:07 CET) on 25 December 2021.

Webb separation from the Ariane 5 occurred at 12:47:14 GMT (13:47:14 CET) with solar array deployment starting 69 seconds later.

Thanks to Ariane 5’s highly precise launch trajectory Webb’s solar array was able to deploy soon after separation from the Ariane 5, capturing sunlight to power the observatory.

This video shows the view from Ariane 5’s upper stage, taken by a camera manufactured by Irish company Réaltra Space Systems Engineering.

Webb is the next great space science observatory following Hubble, designed to answer outstanding questions about the Universe and to make breakthrough discoveries in all fields of astronomy. Webb will see farther into our origins: from the formation of stars and planets, to the birth of the first galaxies in the early Universe. Webb is an international partnership between @NASA, ESA and the @Canadian Space Agency.

Learn more about this historic launch: https://bit.ly/WebbLiftoff

Copyright: ESA/Arianespace ; Music: "Lonely Waltz" by Charlotte Hatherley, used with permission ; Camera: Réaltra Space Systems Engineering

Anyone Can Be a Math Person Once They Know the Best Learning Techniques

video upload by

"Join Big Think Edge for exclusive video lessons from top thinkers and doers: https://bigth.ink/Edge"
----------------------------------------------------------------------------------
Po-Shen Loh is a Hertz Foundation Fellow and Carnegie Mellon mathematics professor who thinks that history is a much harder subject than math. Do you agree? Well, your position on that might change before and after this video. Loh illuminates the invisible ladders within the world of math, and shows that it isn't about memorizing formulas—it's about processing reason and logic. With the support of the Fannie and John Hertz Foundation, Po-Shen Loh pursued a PhD in combinatorics at the Pure Math Department at Princeton University."

A Trillion Frames Per Second

video upload by NOVA PBS Official

"Super Fast Cameras

A new high speed camera can capture light in motion and see around corners."

NASA’s Curiosity Mars Rover Finds A Changing Landscape

video upload by NASA Jet Propulsion Laboratory

"NASA’s Curiosity rover explores Mount Sharp, a 5-mile-tall (8-kilometer-tall) mountain within the basin of Gale Crater on Mars.

Curiosity’s Deputy Project Scientist, Abigail Fraeman of NASA’s Jet Propulsion Laboratory in Southern California, gives viewers a descriptive tour of Curiosity's location. The panorama was captured by the rover’s Mast Camera, or Mastcam, on July 3, 2021, the 3,167th Martian day, or sol, of its mission.

Curiosity landed nine years ago on August 5, 2012, with a mission to study whether different Martian environments could have supported microbial life in the ancient past, when long-lived lakes and groundwater existed within Gale Crater.

For more about Curiosity, visit https://mars.nasa.gov/msl/home/ and https://nasa.gov/msl/

Credit: NASA/JPL-Caltech/MSSS"

Veritasium Physics Bet

"A UCLA Physics Professor bet me $10,000 that my video about going downwind faster than the wind was wrong."

Quantum Locking Will Blow Your Mind—How Does it Work?

video by The Action Lab

"In this video I use a type II superconductor to perform a quantum locking demonstration using YCBO (Yttrium barium copper oxide). I then explain in depth how superconductors and quantum locking (Flux pinning) works."

Video of Perseverance Landing on Mars

video by NASA NASA

"NASA's Mars 2020 Perseverance mission captured thrilling footage of its rover landing in Mars' Jezero Crater on Feb. 18, 2021. The real footage in this video was captured by several cameras that are part of the rover's entry, descent, and landing suite. The views include a camera looking down from the spacecraft's descent stage (a kind of rocket-powered jet pack that helps fly the rover to its landing site), a camera on the rover looking up at the descent stage, a camera on the top of the aeroshell (a capsule protecting the rover) looking up at that parachute, and a camera on the bottom of the rover looking down at the Martian surface.

The audio embedded in the video comes from the mission control call-outs during entry, descent, and landing."

via:

Your front-row seat to my Mars landing is here. Watch how we did it.#CountdownToMars pic.twitter.com/Avv13dSVmQ

— NASA's Perseverance Mars Rover (@NASAPersevere) February 22, 2021

Perseverance sees Jezero Crater rim in 360° Mars panorama

video by VideoFromSpace

"The Perseverance rover's Mastcam-Z captured 142 images that were stitched together to create a 360° Mars panorama. Jezero Crater's rim can be seen in the imagery. -- Wow! See the Perseverance rover dangling above Mars in this amazing landing photo: https://www.space.com/perseverance-ro...​

Credit: Space.com | footage courtesy: NASA/JPL-Caltech/ASU/MSSS | produced & edited by Steve Spaleta (http://www.twitter.com/stevespaleta​)

Music: "Transcendence" by Saul Guanipa (ASCAP) via Videohelper.com"

The Worlds Tiniest Sunflower

Crime Pays But Botany Doesn't

"One from the vaults. Originally recorded in April of 2020, this video examines a very rare and tiny little annual bastard of the Sunflower family known as the Barstow Wooly Sunflower - #Eriophyllum mohavense, known only from the Western Mojave Desert around the city of Barstow, California. Why does it have such a restricted distribution? When did it first emerge as a species? How long can the tiny seeds lay in the gravelly soil waiting for the right conditions to germinate? And why is it so damn small?"

Scientists reveal world's first ever completely intact T-Rex skeleton

Daily Mail

"The Tyrannosaurus Rex and Triceratops Horridus - nicknamed the 'Dueling Dinosaurs' - are preserved together in what is thought to be a predator-prey encounter, where both fought to the death. Body outlines, skin impressions and injuries - including tyrannosaur teeth stuck in the triceratops body - can still be seen 67 million years after the ferocious battle. Each of the remains have only been seen by only a few dozen people since they were discovered in 2006 in Montana, US, by professional fossil hunters. It took years to extract the 14-ton skeletons and arrange their purchase, by the non-profit Friends of the North Carolina Museum of Natural Sciences for an undisclosed sum. The group has donated them to North Carolina Museum of Natural Sciences, in Raleigh, North Carolina, which is due to start building a dedicated exhibition for them next year.

Original Article: http://www.dailymail.co.uk/sciencetec..."

World's Smallest Boat

"From prow to stern, this little boat measures 30 micrometers, about a third of the thickness of a hair. It has been 3D-printed by Leiden physicists Rachel Doherty, Daniela Kraft and colleagues."

via https://www.universiteitleiden.nl

The Largest Star in the Universe – Size Comparison

Kurzgesagt – In a Nutshell

Our Paramecia Are Infected

Journey to the Microcosmos

"We recently discovered some Holospora infecting one of our Paramecium samples. How does that happen? How does the Holospora get in there? And how are they so successful at infecting?

Follow Journey to the Microcosmos:
Twitter: https://twitter.com/journeytomicro
Facebook: https://www.facebook.com/JourneyToMicro"

First Image of Exoplanets

via ESO

"The two gas giants orbit their host star at distances of 160 and about 320 times the Earth-Sun distance. This places these planets much further away from their star than Jupiter or Saturn, also two gas giants, are from the Sun; they lie at only 5 and 10 times the Earth-Sun distance, respectively. The team also found the two exoplanets are much heavier than the ones in our Solar System, the inner planet having 14 times Jupiter’s mass and the outer one six times."

New: Mars In 4K

ElderFox Documentaries Jul 17, 2020

"A world first. New footage from Mars rendered in stunning 4K resolution. We also talk about the cameras on board the Martian rovers and how we made the video."

Coronavirus vs. Humankind

via APOD/NASA

"Explanation: Humanity is under attack. The attack is not from large tentacle-flailing aliens, but from invaders so small they can barely be seen, and so strange they are not even clearly alive. All over planet Earth, the human home world, DNA-based humans are being invaded by the RNA-based SARS-CoV2. The virus, which creates a disease known as COVID-19, specializes in reprogramming human cells into zombies that manufacture and release copies of itself. Pictured here is a high magnification image of a human cell covered by attacking novel coronavirus SARS-CoV2 (orange). Epic battles where two species square off in a fight to the death are not unusual on Earth, with several just involving humans typically ongoing at any time. Even so, most humans are predicted to survive. After several years, humanity expects to win this war -- but only after millions of humans have died and trillions of coronaviruses have been destroyed."

the heart's 'brain'

via Endgadget

"Our hearts are primarily controlled by the brain and autonomic nervous system, but we also have a backup. The heart has its own mini-brain called the intracardiac nervous system (ICN), which fine tunes external autonomic signals and keeps the heart pumping smoothly. Its proper function is essential for good health and disease protection, but the problem is that scientists have a poor understanding of how it works. For the first time, researchers from Thomas Jefferson University have been able to show its structure in stunning 3D detail"

Life, Energy & ATP

Published on May 10, 2020 Kurzgesagt – In a Nutshell

Ultrasonic Cleaning Demo: Cavitation and ultrasonic pressure waves

46,000 Year Old Dead Bird

via Gizmodo

"On Jacquelyn Gill’s first day doing field work at the Siberian permafrost caves during the summer of 2018, a local fossil hunter approached her with a dead bird in his hands. The translator hadn’t yet arrived, but from the freshly dead look of the bird, Gill assumed it had just recently flown into the cave and died. A modern bird was of little interest to her team, which had flown to this remote region and trekked for miles to study remnants of the last ice age. The man, however, was persistent in offering her the dead bird."