Earth

post-thumb

[Earth]

Meteorological vs Astronomical Spring

Meteorological Spring and Astronomical Spring are two ways of defining the start of spring, but they are based on different criteria. Meteorological Spring refers to the three calendar months of March, April, and May in the Northern Hemisphere (or September, October, and November in the Southern Hemisphere). These months are considered to be spring because they generally have milder temperatures and more rainfall than the preceding winter months, and the days start to become longer.

Read more
post-thumb

[Earth]

Have You Seen Ice Needles?

Ice needles instead of snow. Did you know that sometimes, instead of ordinary snowflakes, real ice needles can fall from the sky? These are small and very sharp ice crystals that can even cut the skin. They are formed from solidified water droplets and are usually found in Siberia and the Far North.

Read more
post-thumb

[Earth]

How Far Can Sand Travel?

Did you know that there is a regular sand service between Africa and America? It turns out that the sands from the Sahara desert annually “travel” across the Atlantic Ocean and settle in the USA and in the Amazon forests. Subequatorial winds carry the sand twice a year: in late spring and early autumn.

Read more
post-thumb

[Earth]

Where Do Tsunamis Come From?

Tsunamis are mostly provoked by underwater earthquakes and underwater volcanic eruptions, which sharply raise or lower the seabed and, as a result, move huge masses of water. Until now, the mechanisms of the tsunami have not been thoroughly studied, and it is often difficult to detect an approaching dangerous wave since at first, it is not high enough to start sounding the alarm.

Read more