Which game is most frequently searched for on Google: PUBG or Fortnite

Schlieren method

It has become especially widespread for visualizing various processes in an air environment.

It is probably the only way to observe convection live. In general, this method allows to see any change of density in transparent media. For example, when a candle burns, it heats the air, reducing its density, which allows to notice the obtained heterogeneities.

Why get cats and dogs if there is a pigeon?!

An amazing phenomenon at a temperature of -30 °🌡️

Beirut explosion

Lisbon

Bog in Finland

President Biden claimed that he spoke to the man who “invented” insulin — even though the doctor died before Biden was born.

Demonstration of how frequency changes affect the behavior and shape of a pattern of sugar particles.

Splitting a rock better than cutting 🤤