Photons emitted by a laser beam
Physics

Photons: The Wanderers in Space after the Big Bang

May 8, 2022

If we were able to travel in time and decided to travel to the start of the universe, we wouldn’t be able to see anything. This is because the photons that existed at the time wouldn’t be able to travel anywhere. […]

H2 gas molecule
Chemistry

Hydrogen: Element Number 1

April 29, 2022

Hydrogen is the simplest element in the universe. However, it exhibits behavior that could potentially earn it a place in at least two other locations in row one of the table. […]

Photo of Dmitri Mendeleev
Chemistry

Dmitri Mendeleev’s Two False Predictions

April 29, 2022

Despite Mendeleev’s two false predictions, his legacy remains that of a chemist who had ingenuity and unfailing belief in a periodic system for the ingredients of the universe. […]

Arecibo Observatory
Astronomy

How Do Radio Telescopes Function?

April 23, 2022

It was only when Grote Reber built a telescope capable of receiving radio waves and published his research that there was a surge of interest in radio astronomy, and soon observatories were building radio telescopes of their own. […]

Radio telescope at sunset
Astronomy

Karl Jansky: Father of Radio Astronomy

April 23, 2022

The first time Karl Jansky discovered radio waves coming from outer space, astronomers weren’t too enthusiastic about it. But in time, his discovery led to the foundation of a new scientific field. […]

1 7 8 9 10 11 59