You can see the cavitation bubbles form then collapse.

You can see the cavitation bubbles form then collapse.

Originally shared by Colin Sullender

Cavitation in a glass bottle

It's one of the oldest party tricks: Blowing the bottom off a glass bottle simply by hitting it on the top. When struck from the top, the bottle easily moves downwards while the liquid does not because it has higher inertia. This results in the formation of a near-vacuum environment at the bottom of the bottle (the bubbles). Because this area is now empty, the liquid moves downwards with the full pressure of our atmosphere (101 kPa) through a process called inertial cavitation. The resulting shockwave easily causes the glass to shatter.

Source: https://youtu.be/lj3x2U4CaEs (The Slow Mo Guys)

#ScienceGIF #Science #GIF #Cavitation #Pressure #Slow #Mo #Motion #SlowMo #SlowMoGuys #Vacuum #Inertia #Inertial #Shockwave #Shatter #Glass #Bottle

Bullet vs. Glass

Originally shared by Colin Sullender

Bullet vs. Glass

Prince Rupert's Drops are beads of toughened glass created by dipping molten glass into cold water, which causes it to solidify into a tadpole-shaped droplet. As the glass cools from the outside in, it produces significant compressive stresses on the surface and tensile stresses at the core of the drop. The spherical shape of the bulbous head gives the glass enormous strength, such that it can be struck with a hammer without breaking. However, the tail is extremely fragile and causes the entire droplet to explosively shatter when cracked.

The SmarterEveryDay​​ YouTube channel has a series of videos examining the behavior of Prince Rupert's Drops using high-speed cameras. Here a .38-caliber bullet can be seen disintegrating upon impact with the head of the droplet without damaging the glass.

Source: https://youtu.be/F3FkAUbetWU (Smarter Every Day)

#ScienceGIF #Science #GIF #Glass #Bullet #Impact #Stress #Mechanical #Strength #Stress #Molten #Drop #Droplet #PrinceRupert #HighSpeed #Camera #SmarterEveryDay

Unintended engineering.

Unintended engineering.

Originally shared by Colin Sullender

Motor protein traversing a microtubule

Kinesin is a motor protein found in eukaryotic cells that helps transport cargo during critical cellular functions such as mitosis and meiosis. This animation depicts the proposed "hand-over-hand" walking mechanism by which the protein traverses a microtubule while carrying a cargo vesicle. The seesaw motion is caused by conformational changes during the binding and hydrolysis of the high-energy molecule adenosine triphosphate (ATP). Because microtubules are polar, motor proteins are only capable of traveling in a specific direction. Most kinesins move from the center of the cell towards the periphery.

Source: https://goo.gl/jdkgy9 (XVIVO + Harvard)

#ScienceGIF #Science #GIF #Protein #Kinesin #Microtubule #Mobility #Cell #Microscopic #Vesicle #Biology #Cellular #Biochemistry #Filaments #ATP #Cargo #Transport

SpaceX lands rocket on barge

Originally shared by Colin Sullender

SpaceX lands rocket on barge

SpaceX successfully landed the booster stage of its Falcon 9 rocket today on the droneship Of Course I Still Love You in the Atlantic Ocean. This is the fifth attempt of an at-sea landing by the company and the first to not end with RUD (Rapid Unscheduled Disassembly). The Falcon 9 rocket launched the Dragon spacecraft to low Earth orbit to deliver critical cargo to the International Space Station as part of CRS-8.

Fun Fact: SpaceX has named its two floating landing platforms (Just Read the Instructions and Of Course I Still Love You) after spaceships from Iain M. Banks' Culture series.

Source: https://youtu.be/7pUAydjne5M (SpaceX)

#ScienceGIF #Science #GIF #SpaceX #ElonMusk #Rocket #Dragon #CRS8 #Spaceship #Booster #Landing #Barge #Culture #Sea #Ocean #Reusable