Alhusaini

Stirling engine: Heat energy is converted into mechanical energy through air expansion and compression

This is what happens when you place a flask of dry ice in a box filled with sulfur hexafluoride and then pour hot water in the flask: a kind of little volcano. This and other mixes with gases of different density

During their pastimes, orchid mantises, especially the nymphs, love to jive and sway their hips. As a form of deceiving camouflage and aggressive mimicry, these mantids take the look of a flower swinging in the wind

Gravitational waves are 'ripples' in the fabric of space-time caused by some of the most violent and energetic processes in the Universe. Albert Einstein predicted the existence of gravitational waves in 1916 in his general theory of relativity.

The green whoosh bottle 🧪 The whoosh bottle experiment uses a large plastic jug filled with a flammable liquid. Normally, ethanol is used for this but in this case trimethyl borate, an ester formed from boric acid an methanol, is used

Time to care about the eggs. (Wilson's Plover)

Chorinea sylphina is a species of butterfly of the family Riodinidae. It is found in Ecuador, Peru, and Bolivia. The genus Chorinea comprises of 8 species, all following the same basic wing pattern as sylphina

Some biologists refer to octopuses as having six “arms” and two “legs”, because the two rear appendages are generally used to walk on the seafloor

Even frogs take care of their health

Close up on welding! wow Nice

Bats can swim, and they are good at it

Whenever a hive becomes exposed, it is common behavior for members of the colony to come together and collect any possible honey. By using their straw-like proboscis, the quarter inch long mouthpart can collect a number of substances when extended.

principles engindustry Bolt remover is used to remove rounded off, painted over and rusted bolts and nuts

Have you ever heard the sound of a baby hedgehog?

A cat bites the cat's tongue

A dog helps the girl and brings her toy from the sea

His truck has no reverse.So he built this !