10 September 2015
The Mediated Matter Group and Glass Lab at MIT have developed an additive manufacturing platform called G3DP designed to print optically transparent glass. The tunability of the system to manipulate geometrical and optical variations allows for control over transparency, color, and light transmission, reflection, and refraction. The two-chamber platform heats the material to 1900°F and funnels it through a scanning alumina-zircon-silica nozzle.
Source: https://vimeo.com/136764796
#ScienceGIF #Science #GIF #Glass #3D #Printing #Manufacturing #MIT #MediatedMatter #GlassLab #MITMediaLab #G3DP
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9 September 2015
Many aircraft require external assistance to take off from the short runway of an aircraft carrier. Historically, a pressurized steam system has been utilized to pull a plane down the track to allow it to achieve takeoff speed. The U.S.S. Gerald R. Ford is currently testing the first electromagnetic launching system for the U.S. Navy. The new system uses a linear induction motor , which uses electric currents to generate magnetic fields that propel the aircraft (or cart in this case) down the track. The electromagnetic launch system offers gradual control over the acceleration and promises to reduce the cost of maintenance.
Conventional steam catapult: https://youtu.be/tFGzgvgltMw?t=46
Source: https://youtu.be/1YpBdVjnaT0
#ScienceGIF #Science #GIF #Electromagnet #Electromagnetic #Catapult #AircraftCarrier #USA #US #Navy
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3 September 2015
A non-Newtonian fluid has very different properties compared to normal Newtonian fluids. The most common difference is its viscosity (resistance to gradual deformation under stress) is dependent upon shear rate.
Oobleck is a mixture of cornstarch and water that is a non-toxic example of a non-Newtonian fluid. When pressure is applied to Oobleck, its viscosity increases. A quick finger tap on the surface will feel hard as the fluid thickens. However, slowly dipping your finger into the fluid will feel like interacting with water. When placed on a speaker, it will thicken and form standing waves in response to the lower frequency sound waves.
Source: https://youtu.be/RkLn2gR7SyE (The Slow Mo Guys)
#ScienceGIF #Science #GIF #SlowMoGuys #SlowMo #SlowMotion #Physics #Material #Oobleck #Suspension #Speaker #Oscillation #Vibration #Starch #NonNewtonian #Fluid
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2 September 2015
Plasma is one of the four fundamental states of matter (others are solid, liquid, and gas) and the most abundant form of matter in the Universe. It is comprised of ionized atoms with either a positive or negative charge and free electrons.
As the match burns, electrons are torn from their atoms when chemical bonds break within molecules. Normally those electrons would immediately be re-captured to form the byproducts of combustion. However, the energy provided by the microwave radiation causes this cloud of intermediate ions and free electrons to persist in a semi-stable state. The intense light is a result of these high-energy particles losing energy before being re-energized by the microwave. When the microwave is turned off, the plasma will immediately dissipate since it no longer has the requisite energy to exist.
WARNING: Doing this could damage your microwave! Also, if you ‘re going to record a video of your microwave (this is not my microwave), please clean it beforehand.
Source: https://youtu.be/G7lfzA7WzVI
#ScienceGIF #Science #GIF #Plasma #Microwave #Match #Flame #Electrons #Energy #Radiation #Molecules #Electromagnetic #Ions
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1 September 2015
The first stage of metamorphosis for the Monarch Butterfly is the pupation of the caterpillar into its chrysalis. The caterpillar attaches itself to a surface using a hook-covered appendage called a cremaster. Once firmly secured, the caterpillar sheds its skin to reveal the hard-skinned chrysalis. Once metamorphosis is complete, the adult butterfly emerges from the chrysalis.
Source: https://youtu.be/ocWgSgMGxOc
#ScienceGIF #Science #GIF #Caterpillar #Metamorphosis #Pupae #Pupation #Chrysalis #Insect #Nature #Biology
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31 August 2015
This timelapse depicts the changes in Greenland’s ice mass as detected by NASA’s GRACE satellite system. Between 2004 and 2014, an estimated 2,500 gigatons of ice had been lost from the Greenland landmass.
GRACE consists of two co-orbiting satellites that precisely measure the distance between the two spacecraft in order to make detailed measurements of the Earth’s gravitational field. Since launching in 2002, GRACE has provided a continuous record of changes in the mass of Earth’s ice sheets.
Source: https://youtu.be/qlzE8z0D5Tk (NASA)
#ScienceGIF #Science #GIF #NASA #ClimateChange #GlobalWarming #Ice #Glaciers #Greenland #SeaLevel #Melting #Environment #Ecosystem #GRACE
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28 August 2015
This model depicts cancerous tumor growth. Every dot represents a cell and each color represents a particular genetic mutation. The model takes into account variations in surrounding tissue type, hence the non-uniform outward growth. You’ll notice that most of the protrusions are the homogenous in color. This indicates that the most successful mutations are being propagated outwards by the growing tumor mass.
Source: https://youtu.be/lpytoIxRu0o (Nature)
#ScienceGIF #Science #GIF #Medicine #Biology #Computer #Simulation #Nature #Cancer #Tumor #Model #Growth
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27 August 2015
The Russian Soyuz spacecraft is currently the only manned vehicle capable of delivering astronauts (and cosmonauts) to space. Designed in the 1960 ‘s, the Soyuz is considered the most reliable launch vehicle to date. Here one can be seen undocking from the International Space Station. A Soyuz capsule is always kept docked with the ISS as an emergency escape vehicle.
Source: https://youtu.be/8ec6WJKdubw
#ScienceGIF #Science #GIF #Space #Roscosmos #ISS #Russia #Outerspace #Exploration #Engineering #SpaceStation #Discovery
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26 August 2015
This sagittal cardiac MRI scan depicts the beating human heart within the chest cavity. The imagery was acquired during a breath hold, which is why there is no lung motion. If you look closely, you can see blood exiting the heart through the upper and lower aorta.
Magnetic resonance imaging (MRI) is one of modern medicine’s greatest visualization tools and a fantastic example of basic scientific research translation. It uses powerful magnetic fields to image the body without the use of radiation (X-Ray or CT) or requiring an injection of contrast agent.
Source: https://youtu.be/G4dFVeP9Vdo
#ScienceGIF #Science #GIF #Medicine #Imaging #MRI #MagneticResonance #Heart #Cardiac #Blood #Pumping #Muscle #Radiology
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25 August 2015
When a burning candle is contained within a closed environment it will continue to burn as long as oxygen remains available. Once all available oxygen has been consumed, the flame will extinguish (this is why carbon dioxide fire extinguishers are used).
However, if the candle is sitting in water when it is sealed away, something very unexpected occurs. The surrounding water will be sucked up into the glass as the flame is extinguished. The explanation for this phenomenon is actually still up for debate with two predominant hypotheses.
The first argues that for every two molecules of oxygen burned, one molecule of carbon dioxide is produced. This results in a reduced pressure in the enclosed area which causes the water to be sucked upwards.
The second argues that the air within the container expands because of the heat from the flame. As the flame begins to die, the air begins to cool and contracts. This reduces the pressure within the enclosed area and causes the water to be sucked upwards.
Learn more: http://www.math.harvard.edu/~knill/pedagogy/waterexperiment/
Source: https://youtu.be/Z2_rwr_qEkA (brusspup)
#ScienceGIF #Science #GIF #Fire #Physics #Chemistry #Combustion #Fluid #Experiment #DIY #Candle #Flame #Reaction
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