26 дек 1894 г. - Wilhelm Roentgen X-ray.
Описание:
In 1895 German Physicist discovered "X-rays" which can go through things like flesh but stop at things like bones and lead. This is how X-Rays are taken to see broken bones.Добавлено на ленту времени:
Дата:
26 дек 1894 г.
Сейчас
~ 130 г назад