If you’re a science geek and you aren’t watching Dr. Kaku’s Universe, prepare to spend a few hours catching up.

Over on Big Think, theoretical physicist at C.U.N.Y. and popular radio host and television personality Michio Kaku answers reader questions about physics and futuristic science. This week he tackles Star Trek’s “photon torpedo” and talks about improving efficiency in space travel with the microwave rocket.

You mean I can’t annihilate the enemy with my flashlight? But… that was my back-up plan. Damn you, Star Trek!