In 1967 African green monkeys were imported from Uganda to Germany – and the Marburg virus came with them. It is one of the most aggressive viruses in the world: the human fatality rate can be up to 80% in some outbreaks. No vaccine or effective remedy exists.
On 22nd November 1963 Lee Harvey Oswald shoots John F. Kennedy. Conspiracy theorists see Oswald’s second shot as a ‘magic bullet’ because Oswald hit not just the then-US president, but also Texas governor John Connally, who was travelling with him. How could one bullet hit two people?
Scientists at Duke University in North Carolina have found a way to use the polio virus as a weapon against glioblastoma, the most common and most aggressive form of brain cancer. To do so, they genetically modified the virus so that it could only multiply in tumour cells, not in healthy tissue.
Smartphones deliver important information – but could they soon save our lives? US researchers from the University of Berkeley have developed the app MyShake, which uses an algorithm to filter vibrations that occur during an earthquake and measures them with the help of sensors in the phone.
Cats avoid water because they can’t swim, don’t they? Wrong! The real reason felines tend to avoid water is because their fur quickly becomes sodden and loses its insulation function as a result. This means that the cat cools down fast. They become less agile and also run the risk of drowning.
What goes up must at some point come back down: in the case of a 9mm bullet fired into the air and travelling at a speed of 350 metres per second, the turnaround would happen at a height of 1,100 metres.
In principle, bullets fired from a gun or rifle behave in exactly the same way underwater as they do above the surface. The oxygen contained in the cartridge is enough to release the shot, but during its trajectory the bullet quickly loses speed and rotation.