'Science GIFs' was one of the largest and most active science-oriented collections on the Google+ social network with over 325,000 followers at the time of its shutting down. This website serves as a backup of the content from the collection.
Magic Sand is a toy made from sand coated with a hydrophobic (“water fearing”) compound. When exposed to water, the material aggregates into cylindrical clumps in order to minimize contact surface area. Because of its hydrophobic properties, the sand returns to its original shape when removed from the water.
Source: https://youtu.be/6wM692T2BXM
#ScienceGIF #Science #GIF #Hydrophobic #Interaction #Liquid #Solid #Sand #MagicSand View Original Post on Google+
Electrolysis is the use of electrical energy to drive a reaction that would otherwise have not occurred spontaneously. When a 9V battery is submerged in water, you can see the dissolved electrolytes conducting electricity between the two terminals resulting in the decomposition of water molecules. The resulting bubbles are actually hydrogen (H2) and oxygen (O2) gases!
If you look closely, you will notice the left terminal (cathode) is producing more bubbles than the right terminal (anode). That is because twice as much hydrogen gas is being produced compared to oxygen gas during the reaction!
Source: https://youtu.be/JThGq9_hSys (Bunsen Burns)
#ScienceGIF #Science #GIF #Battery #Electrolysis #Anode #Cathode #Electrons #Electricity #Water #Electrochemistry #Hydrolysis #Positive #Negative View Original Post on Google+
Last night, SpaceX successfully landed the first stage of the Falcon 9 rocket on Landing Zone 1 in Cape Canaveral, FL. This is the first successful recovery of a rocket that launched a payload to orbit. The Falcon 9 delivered 11 Orbcomm-OG2 second-generation satellites to orbit around the Earth.
Earlier this year, Blue Origins (owned by Amazon’s Jeff Bezos), landed a rocket vertically after reaching sub-orbital flight.
Source: https://youtu.be/ZCBE8ocOkAQ (SpaceX)
#ScienceGIF #Science #GIF #SpaceX #Rocket #OuterSpace #Rocketry #Aviation #Aeronautical #Aeronautics #Aerospace #Space #Falcon #Falcon9 #Booster #Engine View Original Post on Google+
Fiber optic cables use an optical phenomenon called total internal reflection to efficiently transmit light across long distances. This demonstration uses a laser pointer aligned with a hole punched into a bottle of water to showcase the effect. As the water flows out of the bottle, the laser light can be seen bending down the stream of water rather than continuing straight onwards. This occurs because the angle of incidence for the light is greater than the critical angle of the water-air interface, thus resulting in the light reflecting backwards within the water.
Source: https://youtu.be/woN9KpAGv4I
#ScienceGIF #Science #GIF #Light #Physics #Laser #Water #Reflection #TotalInternalReflection #Index #Refraction View Original Post on Google+
Ferrocerium is a man-made metallic material that produces sparks reaching 3,000°C when scraped against a rough surface. Commonly referred to as “flint,” it bears no chemical resemblance to naturally occurring flint mineral once used for the same purpose. When scraped on a piece of steel, tiny pieces of flint are shaved off and ignited by the heat generated by friction. This produces the shower of sparks that can be used to start a fire.
Source: https://youtu.be/qO9g1_BTz0o (The Slow Mo Guys)
#ScienceGIF #Science #GIF #Ferrocerium #Flint #Steel #Fire #Sparks #SlowMotion #SlowMo #SloMo #SlowMoGuys #Physics View Original Post on Google+
Anodization is an electrolytic process used to increase resistance to corrosion, wear, and improve adhesion compared to bare metal by thickening the natural oxide layer that forms on the surface of metals. The process is called anodizing because the treated material forms the anode electrode of an electrical circuit.
This piece of titanium undergoes several color changes as it is anodized because the growing layer of titanium oxide refracts light differently depending on its thickness.
Source: https://youtu.be/aSUJsT0YNxA
#ScienceGIF #Science #GIF #Titanium #Physics #Chemistry #Anodizing #TitaniumOxide #Refraction #Electrochemistry #Electrolytic View Original Post on Google+
The coalescence cascade is the phenomenon by which a droplet of water merges together with a larger volume of water. After being gently deposited on the surface, the droplet sits for a moment before coalescing into the bottom layer. As the droplet merges, it results in the formation of a smaller droplet that then undergoes the same process. The timing of the coalescence steps is dependent upon the surface tension of the droplet and has been observed to repeat up to six times before viscosity begins to dominate the interaction.
Source: https://youtu.be/6KKNnjFpGto
#ScienceGIF #Science #GIF #Water #Physics #Coalescence #Cascade #SlowMo #HighSpeed #FPS #SurfaceTension #Droplet View Original Post on Google+
The reaction between chlorine gas (Cl2) and turpentine (C10H16) is exothermic and extremely dangerous because of both the reactants and products. The yellow-green chlorine gas in the Erlenmeyer flask reacts to form hydrogen chloride gas (HCl) and elemental carbon (C), which produces the jet black color.
WARNING: This experiment is extremely dangerous and should never be performed without proper safety equipment. The creator of the source video put themselves at risk by failing to wear gloves.
Source: https://youtu.be/JzHreYJHezw
#ScienceGIF #Science #GIF #Chlorine #Gas #Turpentine #Exothermic #Reaction #Chemistry #Russian #Dangerous #Flame #Safety View Original Post on Google+
On November 6, UP Aerospace conducted a mission for NASA to deploy the Maraia Earth Return Capsule at an altitude of 75 miles. During the launch, they captured the first footage of a rocket stage separation outside of the main rocket body. The upper stage of the rocket can be seen ejecting the lower stage as the camera falls away.
Source: https://youtu.be/AEwKOeCj0jU
#ScienceGIF #Science #GIF #Space #Rocket #Earth #Stage #Physics #Engineering #UPAerospace #Aerospace #Aeronautical View Original Post on Google+
Firedamp is a general term for flammable gases found in coal mines in England that posed serious safety issues for miners using open flames for illumination. Accidental ignition of these pockets of gas resulted in dangerous explosions that claimed many lives.
The chemist Humphry Davy came up with a simple solution in 1815 using only a wire mesh. He discovered that a flame could not penetrate the wire mesh, which meant that lamps wrapped in the mesh contained any ignition of gas. While still not a perfect safety feature, the use of the Davy Lamp saved many lives in the mines of England.
In the first part of this demo, the flame can be seen traversing the entire tube of methane gas. During the second part, a metal mesh was inserted in the middle of the tube, which stops the flame from igniting the gas on the right side of the tube.
Source: https://youtu.be/rhavaxv3a40 (The Royal Institution)
#ScienceGIF #Science #GIF #Firedamp #CoalMine #Gas #Flame #Fire #Flammable #Gauze #Lantern #HumphryDavy #Invension #Metal #Safety #Mesh #Grid View Original Post on Google+
