Why do planes fly so high?

Mount Etna Erupts…

Massive plumes of ash and steam towered over Sicily as Italy’s Mount Etna roared back into action

Can one person make a difference?

Can one person make a difference? The first domino is so small, it’s 5mm tall and only 1mm thick, In this chain reaction, the 26th domino would be as tall as the Empire State Building (381 meters tall)

Thermal expansion, the metal ball experiment

The metal ball shrinking in cold water The ball appears to be heated first, The atoms in heated materials will move, their vibrations moves them slightly apart, so the material will expand This is called thermal expansion The cold did the opposite More reading at – https://www.britannica.com/science/thermal-expansion

Time lapse of Earth from the International Space Station

Absolutely breathtaking This is a time lapse of Earth from the ISS window, as it completes an entire orbit It orbits Earth at an average altitude of approximately 250 miles, travelling at 17,500 mph. At this speed ,It orbits Earth every 90 minutes.

Here’s how the Earth & Moon look from each other over the course of a month

Here’s how the Earth & Moon look from each other over the course of a month

Amazing nature: Spider tailed horned Viper

In the Zagros mountains of Iran, perfectly blended into the gypsum and limestone rocks is a snakes entire body but the tip of its tail which resembles a spider, luring insectivorous birds within a striking range. This is the spider-tailed horned viper This kind of aggressive mimicry using a tail to deceive is called a

Satellite view of Shadow of Moon on Antarctica during solar eclipse

Shadow of the Moon across Antarctica during the December 4 solar eclipse. This view was captured by the DSCOVR space-weather station, which hangs out 1 million miles sunward from the Earth.

Amazing speed: Ghost Crabs

Ghost crabs belong to the genus Ocypode which translates as swift footed This one is a horned ghost crab, look how fast it runs 100 body lengths per second, if they were a comparable size to a human or cheetah, they would reach close to 340 to 530 Km/h

How huddles maintain more warmth and heat

Antarctica has had some of the lowest ground level temperatures on Earth Emperor penguins evolved a social behaviour to endure unimaginable sub zero windchills They form huddles with warm centres, rotating so the ones on the perimeter get respite This experiment shows how it works Heat is a thermal energy and it flows from hotter