Videos
Boiling water with ice
Thermodynamics is a funny area of physics, where different physical quantities are profoundly connected. In this video we look at how reducing the pressure allows you to reduce the boiling point of water.
Latest
Gravitational Waves
Astroholic Live – Gravitational Waves, Solar Panels and Penises
In the latest Astroholic live, we talk about gravitational waves, penis transplants, solar panels, animals that can do photosynthesis, and rogue planets. We are joined by the wonderful Joby Hollis, who’s a physical chemist (or a chemical physicist) and an expert on printable photocells.
Gravitational Waves
Why the discovery of gravitational waves is so important
Today, in my day job I wrote about the momentous discovery of gravitational waves by LIGO. There are four major discoveries associated with the detection: First of all, today it was announced that on 14th September 2015 gravitational waves were observed by both LIGO detectors. This is the first t...
The Astroholic Live
Astroholic LIVE – Of Planets and Dragons
This time, Matt and I talk about warp drive, Planet 9, Welsh Dragons, A.I.s and obviously we provide shaken and not stirred cocktails and our usual silliness!
The Astroholic Live
Astroholic LIVE – Xmas Special
In our first Xmas special we talk about alien megastructures not existing, how the gendered brain idea doesn't have scientific backing, and much more.
Astronaut
Do astronauts age faster or slower in space?
That is an excellent question, and the answer lies with the two theories of relativity: special and general.
Astronomy
Alfredo’s Top 5 Physics & Astrophysics Stories Of 2015
NASA’s discovery of water on Mars Billions of years ago, Mars looked more welcoming to life than Earth was at the time. We have seen evidence of ancient lakes and river beds, but nowadays water on the surface of Mars exist almost entirely as ice. In 2007, scientists observed some dark lines formi...
Asteroid
How dangerous is it to cross an asteroid field?
How easy is to navigate through an asteroid field? Do we need to take precautions when we send probes through them? Andrew, Sidney. I’m afraid TV shows and movies have lied to you: asteroid fields are not difficult to navigate.
Elliptical Galaxy
A60s – A Galactic Heartbeat
Astronomers can measure how much the center of galaxies changes over time, taking the heartbeat of these cosmic islands.
Jupiter
What’s going on with the moons of Jupiter?
The orbit of Jupiter’s moons are all messed up and seemingly overlap. Do they interact much? Greg, U.S. Jupiter has 67 confirmed moons. Of these, 8 are regular satellites with nice prograde motion (they move in agreement with Jupiter rotation).
Astronomy
New Horizon is now en-route for next target.
New Horizon has completed the four maneuvers necessary to direct it to its next target. New Horizons is approximately 120 million kilometres beyond Pluto (which it approached on the 14th of July) and 5.08 billion kilometers from Earth. The maneuvers will change New Horizons’ trajectory by approxi...
The Astroholic Live
Astroholic LIVE 3 – Halloween Spooktacular
TBC