digitalbrain

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 ‘Cupola’, from which the inhabitants of the

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 subject: What is Fusion? Introduction to fusion

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 When this reaction occurs, sodium acetate

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 other side of the synapse is the

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. Variations in colour are due to the type

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, National Film Board of Canada (1968)

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 Disk Euler's Disc Spins for Minutes

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: Tom Strong Reviews When the Tippe

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. Remove the screw-on lid from

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 than the air we breathe.

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 light ray toward the normal

1. Pythagorean theorem water demo Credits: Maz Dak 2. Pythagorean theorem marbles demo Credits: INSIDER 3. Pythagorean theorem, mathematical prove Credits: Explorium Follow us @digitalbrain!

A cool way to teach functions in algebra... Follow us @digitalbrain

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 action moves some of the loose negative

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 quarts of blood every minute. It beats

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 connected to other pages. Sir

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 four-dimensional analog of the cube.

Simple way to teach a method for calculating the area of a spherical surface. Follow us @digitalbrain!

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 former refers to the

Observe the black white spiral carefully for about 20 seconds, then fixate your view at the nebula below. What happens? Follow us @digitalbrain!