Tesla’s original patent application for the use of his famous coil to transmit electricity wirelessly. This amazing device is a radio frequency oscillator that drives an air-core double-tuned resonant transformer to produce high voltages at low currents.
Also available in other styles and shapes.
Slate grey t-shirt, printed in colour.
Care: Machine wash cool. Tumble dry low. Do not iron text/images.
An illuminating look at what physics reveals about the world, from the BBC presenter and bestselling author. Using examples and thought-provoking analogies, Jim Al-Khalili explains the physics that underpins everyday experiences and technologies. Using wonderful examples and thought-provoking analogies, Al-Khalili illuminates the physics of the extreme...
An early 20th Century classroom chart of the solar system is perfectly reproduced on this canvas pencil case. 10.16 x 22.86 cm Made of 100% cotton Lined interior with leather zipper pull
This colourful 500-piece jigsaw puzzle features bright, simplified portraits of Carl Sagan, Carolyn Porco, Isaac Newton, Jane Goodall, Albert Einstein, Charles Darwin, Louis Pasteur, Marie Curie, and more! Just the right level of challenge for families with children of all ages. The illustrations are by...
This book is a comprehensive, accessible, illustrated exploration of the fascinating science of colour. Organized by 50 of the most essential questions about color across a variety of fields (physics, chemistry, biology, technology, and psychology) Arielle and Joann Eckstut examine how and why we see colour,...