TechBrain. KidGram TV

Webb sees the universe as it was when it was born.

Everything is not as it first appears. This simple plastic ball looks purple until you swing it in a circle and reveal its true nature. Inside are three light emitting diodes (LEDs), which are red, green and blue. They turn on and off in sequence very quickly. When still, the ball appears purple because your eyes and brain don't 'refresh' quickly enough to perceive the changing colours. However, when swung in a circle, the ball changes colours at different locations so the colours don't merge with each other and the ball's true nature is revealed.🟢🔴🔵

August 2024 planet parade! Six planets will appear to align in the sky because theyre in the same area of space!🪐

The ability of the human eye to continue to see the image of an object for a very short duration even after the removal of that object is called persistence of vision. In fact, the sensation produced by the image of an object lasts for nearly 1/ 16th of a second on the retina.

At the heart of our galaxy is Sagittarius A*, a supermassive black hole nearly four million times the mass of our sun. Its gravitational effects are quite intense due to its size, and the effects can be detected by looking at the stars in its immediate vicinity. A study, published in August 2020, examined the area surrounding Sagittarius A, looking for the tell-tale signs of stars. ⚫️

There are a number of stars in close orbit around Sagittarius A*, which are collectively known as "S stars". These stars are observed primarily in K band infrared wavelengths, as interstellar dust drastically limits visibility in visible wavelengths.

The value of the speed of light is approximately 299,792,458 meters per second (m/s) in a vacuum. However, it is common practice to round this value to 3 × 10^8 meters per second for simplicity in calculations and scientific notation.⚡️

All moons of Saturns discovered so far compared over the city of London. There are some unconfirmed ones that are not included in the video. Also not included are minor moons and all the rocks in the ring.

NASA just cancelled their WISE/NEOWISE asteroid hunting mission. A new one will launch in 2027. 🛰

The Saturn system teems with natural satellites, from planet-sized Titan to small oddballs, shaped like potatoes or ravioli. Saturn has 146 moons in its orbit, more than any other planet. The moons range in size from larger than the planet Mercury – the giant moon Titan – to as small as a sports arena. 🌝

A huge reservoir of water has been found on Mars. is so large that it could cover the entire planet with water up to a depth of 1 to 2 kilometers or about a mile. The discover was made after analysing years of data from NASA's InSight Mars mission. This finding has solved a long-standing mystery about Mars—what happened to all the water?

In the second half of 2024, a nova explosion in the star system called T Coronae Borealis, or T CrB, will once again be visible to people on Earth. T CrB will appear 1,500 times brighter than usual, but it won't be as spectacular as the event in 1054.🔭

NASA Found Oceans Of Water On Mars!

ollow electricity from its source to the light bulb in your home, explaining different fuels, thermal power generation, transmission and the grid.

This giant buoy uses waves to create electricity! ⚡️

This is the world’s largest digital camera - and it just got finished! Here’s just how BIG it really is and what scientists are about to start using it for...🔭

Get ready for the 2024 Perseid Meteor Shower, the most stunning night sky event of the summer! This episode dives into when and where to watch and explains why this year’s shower will be unforgettable. Don't forget to make a wish upon a shooting star! 🌟

Earth is going to collide with chunks of a comet next week (August 11-12) and create the Perseid meteor shower!! Grab your friends, a date, or just some snacks and watch! 💫

Testing the Most Viral Home Robot🤖

Almost all galaxies are spirals, elliptical, or irregular of some sort. However, a few oddballs fit into none of these categories, and one galaxy stands alone. If you look closely at the serpent constellation slithering over the northern sky, you might see a ring galaxy called the Hoag's Object. There's another ring galaxy within the ring galaxy.