What is a photon? In physics, a photon is a bundle of electromagnetic energy. It is the basic unit that makes up all light. The photon is sometimes referred to as a quantum of electromagnetic energy. Photons are not thought to be made up of smaller particles. They are a basic unit of nature called an elementary particle. Properties of a Photon Photons have some basic properties that help define what they are and how they behave. These properties include:
Globe Staff November 08, 2016. Massachusetts voters on Tuesday legalized marijuana for recreational use, sweeping away more than a century of prohibition and opening the door to a massive new industry. The vote means the drug will become legal for use on Dec. 15, and marijuana shops can open in 2018.
A group of people in San Rafael, California, calling themselves the Waldos because their chosen hang-out spot was a wall outside the school, used the term in connection with a fall 1971 plan to search for an abandoned cannabis crop that they had learned about.20 event in Golden Gate Park, San Francisco, April 20, 2013. Students and others gather for a 420 Day event in Porter Meadow at the University of California, Santa Cruz, campus on April 20, 2007. April 20 has become a counterculture holiday in North America, where people gather to celebrate and consume cannabis.