The Spacetime Interval.

When going through the questions and comments of the recent Zodiac series, I found a lot of questions regarding the spacetime interval and realised I didn't go into it in any great detail in last years relativity series. Silly me! When I discussed the spacetime interval in the past, I explained it in the mathematical … Continue reading The Spacetime Interval.

Gravitational Waves

On the 11th of February 2016, the Laser Interferometer Gravitational Wave Observatory (LIGO) announced that they had detected the first evidence of the existence of gravitational waves the previous September. At the time this was a massive triumph for the team that observed them and made headlines worldwide. So what are gravitational waves? In 1916, … Continue reading Gravitational Waves

Finale – The Constellation Capricorn.

A little bit of housekeeping is in order. Technically speaking I probably should have started with Capricorn but given Aquarius is in January I started with that. Nonetheless, the Sun in our series will have gone through all the signs of the zodiac on its journey around the ecliptic. As we have started housekeeping I … Continue reading Finale – The Constellation Capricorn.