In chemistry, a solution is a homogeneous mixture composed of only one phase. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent. The solvent does the dissolving. The solution more or less takes on the characteristics of the solvent including its phase, and the solvent is commonly the major fraction of the mixture. The concentration of a solute in a solution is a measure of how much of that solute is dissolved in the solvent.

Homogeneous means that the components of the mixture form a single phase. The properties of the mixture (such as concentration, temperature, and density) can be uniformly distributed through the volume but only in absence of diffusion phenomena or after their completion. Usually, the substance present in the greatest amount is considered the solvent. Solvents can be gases, liquids, or solids. One or more components present in the solution other than the solvent are called solutes. The solution has the same physical state as the solvent.

William Sanford "Bill" Nye (born November 27, 1955), popularly known as Bill Nye the Science Guy, is an American science educator, comedian, television host, actor, mechanical engineer, and scientist. He is best known as the host of the Disney/PBS children's science show Bill Nye the Science Guy (1993–1998) and for his many subsequent appearances in popular media as a science educator.

William Sanford Nye was born in Washington, D.C., the son of Jacqueline (née Jenkins; c. 1920–2000), a codebreaker during World War II, and Edwin Darby "Ned" Nye (died 1997), also a World War II veteran whose experience in a Japanese prisoner of war camp led him to become a sundial enthusiast. Nye is a fourth-generation Washington, D.C. resident on his father's side of the family. After attending Lafayette Elementary and Alice Deal Junior High in the city, he was accepted to the private Sidwell Friends School on a partial scholarship, graduating in 1973. He studied mechanical engineering at Cornell University, where one of his professors was Carl Sagan, and graduated with a Bachelor of Science in 1977. He was awarded an honorary doctorate by The Johns Hopkins University in May 2008. In May 2011, Nye was awarded an Honorary Doctor of Science degree from Willamette University where he was the keynote speaker for that year's commencement exercises.

Michael Tellinger is an author and songwriter who entered the South African music scene during the Apartheid years. His song "We come from Johannesburg" in 1986 was a nine-minute anti-apartheid epic. It was also the first Rap album to be released by a South African artist.^{[citation needed]} The song was instantly banned due to its anti-government stance^{[citation needed]}. Tellinger became a target of the regime: phone tapping, South African Police surveillance, several threats on his life, and other intimidatory tactics.^{[citation needed]} The song was originally written by Michael Tellinger and Neil Johnson of Radio 702 fame in Los Angeles while living in exile. It was a response to Little Steven Van Zandt's "Sun City". Tellinger and Johnson wrote the rap epic to put on record a South African perspective on the situation in their country.

Tellinger released his first SA record in 1981, HAZEL, nominated for the SARIE award in that year as best male vocalist.^{[citation needed]} Later in 1981 Tellinger played the part of Joseph in the opening of the State Theatre in Pretoria. The show toured with great success for 2 years.

Deepak Chopra (Hindi: दीपक चोपड़ा; born October 22, 1946) is an Indian-born, American physician, public speaker, and writer. He is generally specialized in subjects such as spirituality, Ayurveda and mind-body medicine. Chopra began his career as an endocrinologist and later shifted his focus to alternative medicine. He now runs his own medical center with a focus on mind-body connections.^{[clarification needed]} He is also a lecturer at the Update in Internal Medicine event.

Chopra was an assistant to Maharishi Mahesh Yogi before starting his own career in the late 1980s by publishing self-help books on New Age spirituality and alternative medicine. A friend of Michael Jackson for 20 years, Chopra criticized the "cult of drug-pushing doctors, with their co-dependent relationships with addicted celebrities", saying that he hoped Jackson's death, attributed to an overdose of a prescription drug, would be a call to action.

Chopra was born in New Delhi, India. His father, Krishan Chopra (1919–2001) was a prominent Indian cardiologist, and head of the department of medicine and cardiology at Mool Chand Khairati Ram Hospital, New Delhi, for over 25 years, He was also a lieutenant in the British army. His paternal grandfather was a sergeant in the British Army, who looked to Ayurveda for treatment for a heart condition when the condition did not improve with Western medicine.