Tag: Einstein

Gravitational waves have been detected, Einstein was right | Science Alert

http://www.sciencealert.com/live-update-big-gravitational-wave-announcement-is-happening-right-now

After 100 years of searching, an international team of physicists has confirmed the existence of Einstein’s gravitational waves, marking one of the biggest astrophysical discoveries of the past century. It’s a huge deal, because it not only improves our understanding of how the Universe works, it also opens up a whole new way of studying it.

On Pi Day, How Scientists Use This Number | NASA JPL

http://www.jpl.nasa.gov/news/news.php?feature=4508

The world celebrates the number pi on Pi Day: March 14, 2015 (3/14/15). Here’s how pi is used in science and engineering.

If you like numbers, you will love March 14, 2015. When written as a numerical date, it’s 3/14/15, corresponding to the first five digits of pi (3.1415) — a once-in-a-century coincidence! Pi Day, which would have been the 136th birthday of Albert Einstein, is a great excuse to eat pie, and to appreciate how important the number pi is to math and science.

Pi is the ratio of circumference to diameter of a circle. Any time you want to find out the distance around a circle when you have the distance across it, you will need this formula.