Readers can better understand how informed consent and the question of morality in medical experiments have changed over time.

VOA: special.2010.07.21

Pieter Hoff says he is now doing experiments with twenty thousand Waterboxxes in countries including Pakistan, Ecuador and the United States.

VOA: special.2010.07.13

Some experiments are already taking place in the mine at a depth of about one thousand five hundred meters.

VOA: special.2009.07.21

A research team at the Carmabi Foundation in Curacao carried out experiments to see if the same was true for baby coral.

VOA: special.2010.08.10

He looks the same way when he examines an animal he has killed in one of his experiments.

VOA: special.2009.05.23

In two thousand,after much research and many experiments, he returned to Nepal to put the systems into homes.

VOA: special.2009.12.21

Bourke-White's photographic experiments began with the use of industry in art.

VOA: special.2009.05.10

Some of the experiments focus on studying how orbiting in space can affect the human body and plant growth.

VOA: standard.2010.04.05

The United States is the only country in the world that still allows federally-funded medical experiments on chimpanzees.

VOA: standard.2010.02.16

He also made NASA history, becoming the first orthopedic surgeon in space, conducting a number of medical experiments.

VOA: standard.2010.02.02

The module called Kibo or "Hope" in Japanese will allow astronauts to conduct experiments that involve exposing materials to the vacuum of space.

VOA: standard.2009.07.16

President Obama will be directly involved in one aspect of the campaign a White House science fair that will showcase top student experiments from across the country.

VOA: standard.2009.11.24

A recent undercover investigation conducted by the Humane Society of the United States found chimpanzees in a Louisiana research center being subjected to harsh treatment and painful medical experiments.

VOA: standard.2010.02.16

Warren says now that researchers have a map of the zebra finch genome, they can carry out experiments to identify which genes in the finch's brain are most critical to hearing and producing song - and by extension, which genes may play a role in human speech disorders, like those related to stuttering, autism,and Parkinson's disease.

VOA: standard.2010.04.05