Having type 1 or 2 diabetes requires a person to always know what their blood sugar levels are. This normally takes time and can be quite invasive – normally people prick their finger with a special device and place a small drop of blood on a testing strip.
Psychologists often measure creativity using divergent thinking tasks. These require you to generate as many uses as possible for mundane objects, such as a brick.
Now, German scientists have found a way to exploit this property to take holograms, or 3D photographs, of objects inside a room — from outside it.
If you often wake up during the night and usually blame it to the last cup of coffee in the evening, you should know that the real reason is the energy in your body.