Daily Archives: July 22, 2014

July 23 marks the passing of Sir William Ramsay. Ramsay was a Scottish chemist who was responsible for discovering the elements that make up most of the right hand edge of the periodic table — the noble gases. Ramsay collaborated with Lord Rayleigh who had noticed a difference in density between […]

Today In Science History – July 23 – William Ramsay ...

This entry was posted on July 22, 2014 by Todd Helmenstine (updated on June 21, 2021)

Fractions — Fractions are an important part of science mathematics. A fraction is a representation of one number divided by another. On paper, they are written with two numbers arranged vertically with a line separating them. The top number (numerator) is divided by the bottom number (denominator). One half is 1 divided by 2 and […]

Writing Fractions In HTML

This entry was posted on July 22, 2014 by Todd Helmenstine (updated on May 1, 2022)

Projectile motion problem setup illustration — Throwing or shooting a projectile follows a parabolic course. If you know the initial velocity and angle of elevation of the projectile, you can find its time aloft, maximum height or range. You can also its altitude and distance travelled if given a time. This example problem shows how to […]

Projectile Motion Example Problem – Physics Homework Help

This entry was posted on July 22, 2014 by Todd Helmenstine (updated on June 21, 2021)