Propelling a spaceship with photons would be like trying to energize a spaceship with a flashlight. Today, Dr. Kaku addresses a question posed by Serge Andrew Shpad: Is a photon engine possible? Could it be used to power a spaceship?<br /><br />Read more at BigThink.com: http://bigthink.com/dr-kakus-universe/why-we-cant-fire-the-photon-torpedos<br /><br />Follow Big Think here:<br />YouTube: https://www.youtube.com/user/bigthink<br />Facebook: https://www.facebook.com/BigThinkdotcom<br />Twitter: https://twitter.com/bigthink