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digitalbrain (53)in #til • 9 years ago
TIL: First-ever panoramic view of Earth from Aboard International Space Station
Today I Learn that RT realeased the first ever panoramic view of Earth from the International Space Station ! Cosmonaut Andrey Borisenko shows a module called ‘…
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digitalbrain (53)in #til • 9 years ago
Fusion Energy Explained
Today I learned the fusion energy process with this 6 minutes video: Credits: Kurzgesagt – In a Nutshell Image Credits And then read some more about this…
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digitalbrain (53)in #science • 9 years ago
How to make Hot Ice
Hot ice is made using sodium acetate, which is a salt created from the reaction between sodium bicarbonate (baking soda) and acetic acid (vinegar). Hand in Hot Ice…
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digitalbrain (53)in #science • 9 years ago
Chemical and Electrical Synapses
A synapse is a junction formed between two neurons, which allows the cells to communicate. The neuron approaching the synapse is called the presynaptic neuron . On the…
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digitalbrain (53)in #science • 9 years ago
How The Northern Lights Are Created
The Northern Lights are the result of collisions between gaseous particles in the Earth's atmosphere with charged particles released from the sun's atmosphere.…
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digitalbrain (53)in #science • 9 years ago
The scale of things
Kees Boeke's book Cosmic View The Universe in 40 Jumps (1957) inspired a series of interesting short films about the scale of things: Cosmic Zoom Credits: Eva Szasz…
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digitalbrain (53)in #science • 9 years ago
Euler's Disk: maths can be fun!
Euler's Disk is an educational toy known for a seemingly paradoxical dramatic speed-up in spin rate as the disk loses energy and approaches a stopped condition. Euler's…
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digitalbrain (53)in #science • 9 years ago
Tippe Top
The Tippe Top inverts itself when spinning at sufficient speed. It does this because its centre of mass does not coincide with the geometrical centre of sphere. Credits:…
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digitalbrain (53)in #science • 9 years ago
Twenty amazing science experiments!
1. Jet engine in a jar You need: Methanol (antifreeze is almost pure methanol), Glass jar with a metal screw cap, Hammer and nail (or a drill), Safety goggles, Long match.…
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digitalbrain (53)in #science • 9 years ago
Sulfur Hexafluoride: fun and medical uses
Sulfur hexafluoride (SF6) is a colorless, odorless, inorganic, non-flammable gas. SF6 is also an excellent electrical insulator. Sulfur hexafluoride is about six times heavier…
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digitalbrain (53)in #science • 9 years ago
Refraction of Light
Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the…
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digitalbrain (53)in #science • 9 years ago
Three cool Pythagorean Theorem demos!
1. Pythagorean theorem water demo Credits: Maz Dak 2. Pythagorean theorem marbles demo Credits: INSIDER 3. Pythagorean theorem, mathematical prove Credits:…
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digitalbrain (53)in #science • 9 years ago
Dancing Maths
A cool way to teach functions in algebra... Follow us @digitalbrain
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digitalbrain (53)in #science • 9 years ago
Easy experiment with static electricity
Static electricity creates positive (+) or negative (-) charges that can either attract or repel other objects. Try to rub a balloon against your hair. The rubbing…
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digitalbrain (53)in #science • 9 years ago
An animated representation of how the heart works
The heart is a pump. It is divided into the right and the left side. The division protects oxygen-rich blood from mixing with oxygen-poor blood. A heart pumps about 5…
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digitalbrain (53)in #science • 9 years ago
Happy Internaut day!
On 23 August 1991, the world's first website went live to the public. The website, created by Sir Tim Berners-Lee, consisted of a basic text page with hyperlinked words that…
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digitalbrain (53)in #science • 9 years ago
Tesseract
A tesseract is a mathematical construct. A description of what a higher dimensional object would look like if such higher dimensions existed. In geometry it is the…
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digitalbrain (53)in #science • 9 years ago
Calculating the area of a spherical surface
Simple way to teach a method for calculating the area of a spherical surface. Follow us @digitalbrain!
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digitalbrain (53)in #science • 9 years ago
Four stroke axial reciprocating DUKE engine
It is "Axial" because the axis of each cylinder is aligned with the axis of the output/crank shaft. This type of engines are also called 'barrel' and 'Z-crank' engines. The…
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digitalbrain (53)in #science • 9 years ago
Tricking your brain...
Observe the black white spiral carefully for about 20 seconds, then fixate your view at the nebula below. What happens? Follow us @digitalbrain!
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