Scottish Sensory Centre
Translation: Light travels at a speed of 300,000 km per second through air.
Other waves have a similar speed: radio waves, microwaves and X-rays.
© All SSC BSL Glossary videos are Intellectual property of University of Edinburgh and cannot be used elsewhere without express permission of the Head of the Scottish Sensory Centre, Prof John Ravenscroft
Scottish Sensory Centre, Moray House School of Education,
University of Edinburgh, Holyrood Road, Edinburgh EH8 8AQ