In 1895, Wilhelm Röntgen discovered X-rays while experimenting with cathode rays and crystals, leading to the realization that invisible rays could cause fluorescence and penetrate lightproof ...

Rounding out a century moulded by innovation and discovery, after weeks of diligent research studying a new type of radiation, in 1895 German physicist Wilhelm Conrad Roentgen published his paper ...

RöNTGEN'S discovery of X-rays at the end of the year 1895 began a new era in the history of scientific investigation. Few discoveries have so speedily been followed by important benefits to ...

Then came the Lenard rays and in 1895 the Roentgen rays, in 1896 the Becquerel rays and in 1899 radium, with its mysterious radiation. This was followed by the report that probably all matter is ...

The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations ...

From the discovery of gravity to the first mission to defend Earth from an asteroid, here are the most important physics ...

A screen of human-infecting viruses identified extensive examples of viral proteins that resembled human sequences, which could trigger autoimmune diseases like multiple sclerosis.