Watch the physical sciences: heat and energy transfer HDToday. Explains that heat is really a form of motion, a form of kinetic energy and that it can be converted to other forms of energy and transferred through conduction, convection and radiation. Shows practical examples in which heat preserves lives and makes daily living more convenient.
3.52023HD
Free Will? A Documentary is an in-depth investigation featuring world renowned philosophers and scientists into the most profound philosophical...
6.42015HD
An oil boom has drawn thousands to America’s Northern Plains in search of work. Against the backdrop of a cruel North Dakota winter, the...
72023HD
They have no roots, no seeds, no flowers, but mosses show immense survival capacities and can suspend their biological activity for long periods....
6.62020HD
This remarkable journey across our planet and universe explores how meteorites, shooting stars, and deep impacts have awoken our wonder about other...
7.51996HD
A documentary of insect life in meadows and ponds, using incredible close-ups, slow motion, and time-lapse photography. It includes bees collecting...
6.82019HD
The biggest tech revolution of the 21st century isn’t digital, it’s biological. A breakthrough called CRISPR gives us unprecedented...
7.52016HD
Is it possible for the entire world to switch to decentralized and renewable energy sources by 2030? In this inspiring documentary, we meet with...
7.72024HD
7.32020HD
With a million species at risk of extinction, Sir David Attenborough explores how this crisis of biodiversity has consequences for us all,...
01990HD
Portrait of Hermann Heinzel.
32016HD
Every day our changing climate pushes us closer to an environmental catastrophe, but for most the problem is easy to ignore. David Hallquist, a...
5.12014HD
Dr. Helen Caldicott is the most prominent anti-nuclear activist in the world. She's been featured on CNN, 60 Minutes, CBC and Democracy Now. In the...