The anonymous mask is a well-known symbol in the culture. It is used by groups usually associated with the fight for freedom. However, few know that it has its roots in an event where many innocent people were about to be killed. Find out what ...

Gas and carbon monoxide detectors are simple to use and relatively inexpensive devices that can save health or life. Uncontrolled gas leaks in workplaces and residential buildings are rare today, but it is better not to tempt fate. What is it worth knowing about these ...

Remote Communication Interception Software. Sounds mysterious and should stay that way. But what are journalists for? Deutsche Welle announced some time ago that at the end of the year (and thus now) German law enforcement agencies would be able to almost take control of the ...

Coronavirus is particularly dangerous because of its rapid spread through droplets. By sneezing, coughing and even physical contact infected people can infect others with the COVID-19 virus in a short time. It is also possible to get infected even without the participation of another human ...

There are crowded, warm and primordial places … Especially, when hunting instincts are born in one half of the crowd and the other half activates instincts of survival at the same time. It is a neon jungle, in which man is only an anonymous bulldozer ...

If you often take photos with your smartphone and have an Instagram account, you surely use various filters to tweak them. Would you like to have a smartphone that changes reality that you photograph without using additional filters? It‘s possible thanks to a thermal imaging ...

Varroa Destructor is a parasitic mite that attacks honey bees and causes varroosis. It usually starts preying in the spring and, in order to protect bees, bee-keepers use various methods like strips with special synthetic chemicals, they spray hives, use organic acids or beneficial mites ...

Three sharks have met and they‘re discussing their breakfast. ‘I have eaten a Chinese today‘, the first one says. ‘Was it good?‘, the other two ask. ‘Not really, just rice.‘ ‘And I have eaten a French guy‘, remarks the second one. ‘Tasty?‘ ‘No, only frogs ...

Traces are everywhere. Hooves of a deer, clues left on purpose by children playing hare and hounds, even an advice note in your postbox left by a postman. In forensic science traces have a slightly different significance and make fans of detective novels feel thrills ...

First flashlight was patented by Conrad Hubert, the founder of American Ever Ready Company, 118 years ago. Imagine that then it was only able to give literally a brief flash of light, hence its name. Hand-made from crude paper and fibre tubes, it wasn‘t very ...