United States or French Polynesia ? Vote for the TOP Country of the Week !
Salvioni of Perugia has invented a "cryptoscope," which enables us to see the hidden object without the aid of photography by allowing the rays to fall on a plate coated with one of these phosphorescent substances.
There is no serious discomfort excepting the somewhat irksome necessity of remaining absolutely still. Another method of seeing the denser tissues of the body is by direct observation. A means of seeing through the thinner parts of the body, such as the fingers or the toes, has been devised simultaneously by Salvioni of Italy, and Professor Magie of Princeton.
Word Of The Day