Tag Archives: Einstein

Topical Science – Gravitational Waves

Physicists have confirmed the existence of gravitational waves, ripples in the fabric of spacetime that travel at the speed of light. Einstein’s Theory of General Relativity predicted the existence of these waves 100 years ago, but this is the first time that they have been detected directly.

They used highly sensitive equipment to measure two black holes, which collided many light years away. The detection proves gravity travels as a wave, but what is gravity?

For younger learners watch the Tigtag film Gravity in our Universe with your class to discover more.

For older learners, watch Black Holes to learn more about the mysterious phenomena that allowed scientists to collect this data.



Twig, Tigtag and Tigtag Junior are available to all educators and learners in Scotland via the Glow Launch Pad. We provide online walk-throughs for teachers at a time that suits. Interested? Contact us on 0141 353 7700 or via our contact page

Register to receive further e-bulletins from Twig Newsdesk and Tigtag Topical Science.


Twig Logo

Tigtag LogoTigtag Junior Logo

Einstein 100: Happy Birthday General Relativity

Award-winning animator Eoin Duffy has teamed up with filmmaker Jamie Lochhead and science communicator / astrophysicist Anais Rassat to create a striking 3 minute animation narrated by David Tennant that celebrates 100 years of Einstein’s greatest work – general relativity.

Einstein first presented the theory on the 25th of November 1915, 100 years ago today. The theory – which describes gravity, space and time – is regarded as the greatest feat of thinking about nature to come from a single mind. It explains everything from how planets in the solar system orbit our sun, to black holes and how the Universe evolved after the Big Bang.

Astrophysicist Anais Rassat explains: “Einstein’s theory of general relativity is not just about understanding gravity, it is central to our understanding of the entire Universe”. Jamie Lochhead adds “Einstein’s big idea was the concept of warped space and time. It’s mind-bending stuff!”

With modern telescopes, scientists have determined that Einstein’s theory requires nearly 70% of the universe to be made of a mysterious energy called dark energy, and 25% of dark matter, an exotic matter that has never been observed on earth. Together, this mysterious 95% is called the “dark universe” by scientists, meaning that normal matter we have on earth is only 5% of the Universe. “Understanding the nature of the dark universe is one of the major challenges of modern astrophysics ,” says Rassat.

The animation is funded by the STFC. It is hoped that on the centennial of the great theory, the film will reach a wide online audience and inspire viewers with the wonder of Einstein’s masterpiece.

Youtube: : https://youtu.be/6HQW3Wyv16I

Website: www.einstein100.com

Facebook page: https://www.facebook.com/EinsteinOneHundred/

Social media hashtag: #Einstein100