The professional astronomer or astrophysicist is a pretty recent phenomenon. In the past, astronomy was often performed by nobility and extremely enthusiastic amateurs. Although it seems like the scientific exploration of our universe is now in the hands of full-time career astro-professionals, a ton of really valuable science is still done by people with proper day jobs.

Visiting the site of the world's worst nuclear accident at Chernobyl, Stefan Gates finds people living on toxic land. His journey takes him right up to the crumbling sarcophagus itself, and when a woman prepares a meal from produce grown in her garden,Gates is faced with a tricky dilemma.

En guise de commémoration des actes héroïques, 13 monuments de la Première Guerre mondiale furent érigés en France et en Belgique.

In Antarctica, millions of penguins congregate to mate during the warm season. But it isn't all romance, leopard seals have traveled from as far as Australia to prey on them.

This special version of Newborn Care includes all the same essential information as the standard version, but without any mention or visuals of artificial nipples or formula feeding. Itteaches the essentials of newborn care and the latest in the American Academy of Pediatrics (AAP) safety guidelines.See solutions to common challenges and hear information needed to make the best, and safest, choices for an infant. Content includes: appearance, senses...

This is a timeline of events in the history of the Cold War, from 1945 to 1991. The Cold War was a period of tension between the United States and the Soviet Union after the end of World War II, as they tried to prevent each other from gaining too much power, with the threat of nuclear weapons looming.

It’s time to get energized and make things light up, heat up, power up, and break up. This program will melt away the complexity of thermodynamicsc and the functions and laws behind it. Heat up your class and make things happen, just like the energy found in this video. Topics include: Energy Basics, State Functions and Hess’s Law, The First Law of Thermodynamics, The Second Law of Thermodynamics, and Gibbs Free Energy.

The world's deserts are lands of extremes that force animals to come up with ingenious ways of coping with hostile conditions, giving rise to the most incredible survival stories on Earth. A pride of desert lions are so hungry they risk hunting a giraffe several times their size, while male sandgrouse fly 120 miles each day to the nearest waterhole and dice with death to collect water for their chicks. Filmed for the first time, a tiny bat does battle...

Detective Inspector Bones investigates an unusual Victorian traffic accident; Roman scientist Pliny the Elder suffers a Stupid Death in ancient Pompeii; Prime Ministers Neville Chamberlain and Winston Churchill argue online over what to do about Adolf Hitler; and we discover the horrible history of early Australia.

Insects are the most diverse animal group on the planet. The key to their success is their unique ability to reshape themselves. They possess fearsome weapons, yet can display surprising tenderness and sophisticated behavior. Take to the skies with millions of monarch butterflies in Mexico; see a beetle spray boiling chemicals at its enemies; witness giant bees fight to the death over females; join the marching columns of grass cutter ants; and spend...