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.
By Ruth Brown, Newser Staff. Posted Apr 20, 2013 3:02 PM CDT. (Newser) â It's April 20, the day on which marijuana enthusiasts around the country celebrate their favorite smokable green herb at events like the Cannabis Cup in Denver and Snoop Lion's (nee-Dogg's) 420 Festival in LA.he teens, who called themselves the Waldos, would meet at 4:20pm after school and go in search of a rumored nearby marijuana plantation. They never found it, but 420 became their codeword for all weed-based discussion.