Typically, lower-energy radiation, such as radio waves, is expressed as frequency; microwaves, infrared, visible and UV light are usually expressed as wavelength; and higher-energy radiation, such as X-rays and gamma rays, is expressed in terms of energy per photon.
Emmanuel Macron. Emmanuel Macron (French: [emanÉ¥Él makÊÉÌ]; born 21 December 1977) is a French politician, senior civil servant, and former investment banker. Born in Amiens, he studied Philosophy at Paris Nanterre University, and later graduated from the Ãcole nationale d'administration (ENA) in 2004.
In 2014, President Francois Hollandeâs partner Valerie Trierweiler published a bitter tell-all book on him after his liaison with actress Julie Gayet became public. For Macron and his wife, the challenge if he takes office in May will be to not let their unusual personal history -- the coupleâs age difference is the same as Donald and Melania Trump, only in reverse -- become a distraction.