TED-Ed
Ugly History: The US syphilis experiment | Susan M. Reverby
Afflicting nearly 1 in 10 Americans, syphilis was ravaging the U.S. in the 1930s. Many doctors believed syphilis affected Black and white patients differently, and the Public Health Service launched an experiment to investigate,...
TED-Ed
TED-ED: The strange case of the cyclops sheep - Tien Nguyen
In the 1950s, a group of ranchers in Idaho were baffled when their sheep gave birth to lambs with only one eye. Mystified by these cyclops sheep, they called in scientists from the U.S. Department of Agriculture to investigate. What...
Bozeman Science
Thinking in Patterns - Level 1 - Observational Patterns
A mini-lesson on observational patterns.
TED Talks
Sara Valencia Botto: When do kids start to care about other people's opinions?
Drawing on her research into early childhood development, psychologist Sara Valencia Botto investigates when (and how) children begin to change their behaviors in the presence of others -- and explores what it means for the values we...
Professor Dave Explains
How Genetics Interacts with Biological Anthropology
Once the field of genetics was developed, our understanding of biology was completely transformed. How did this specifically impact the field of anthropology? From Mendel's laws to the Human Genome Project, let's learn about how our...
Curated Video
Water Uptake in Plants
We place two privet hedge shoots under different conditions to see how the amount of water they draw up will change. They are both placed in measuring cylinders with the same amount of water and a layer of oil is added to the top to...
Curated Video
Making an Electromagnet
We create a simple electromagnet by coiling wire around a nail and passing current through it. The magnetic field around the electromagnet creates similar patterns in iron fillings to a permanent magnet. Physics - Electricity And...
Curated Video
Stimulating Daphnia
We examine the effects of different temperatures and chemicals on the heart rate of Daphnia. A microscope is used to let us see the Daphnia\u2019s heart and establish the heart rate under normal conditions. The heart...
Curated Video
Stomach Acid and Antacid
We use the enzyme pepsin and hydrochloric acid to simulate the conditions within the stomach in two boiling tubes. Cooked egg whites are ground and added to two boiling tubes of hydrochloric acid, but one is mixed with a crushed antacid...
Curated Video
Capillary Action
Water is added to dry and bent matchsticks to let us see capillary action at work. The wood absorbs the water causing the matchsticks to straighten. Biology - Plants - Learning Points. Water is a polar molecule because the electrons are...
Curated Video
Magnetic Strength
We use two magnets and a set of scales to examine magnetic field and strength. One magnet is attached to the scales and a second is lowered towards it. When opposite poles are facing each other, the weight on the scales decreases as the...
Curated Video
Enzyme Action: Trypsin
We demonstrate denaturing by adding the enzyme trypsin to photographic film. Strips of photographic film are added to trypsin solution at different temperatures to determine the optimum conditions for the enzyme. In the right conditions...
Curated Video
Ball and Hoop
We use a metal ball and hoop to demonstrate heat expansion. When cool, the ball fits through the hoop, but there is little extra space. The ball is then heated over a Bunsen burner. When hot, the ball doesn't fit through the hoop. We see...
Curated Video
Agar Cube Diffusion
We use coloured agar cubes to see how different shapes change the rate of diffusion. The cubes are made using sodium hydroxide and phenolphthalein indicator to give them a pink colour. When these are added to hydrochloric acid, the...
Curated Video
Inflating Glove
We inflate a rubber glove using the gas produced during a neutralisation reaction. Bicarbonate of soda is added to vinegar in a beaker covered by a rubber glove and it expands. The gas is used to extinguish a flame, showing that it is...
Great Big Story
Joe Nickell, the truth behind paranormal mysteries
Follow Joe Nickell, a seasoned paranormal investigator, as he debunks myths of ghosts, UFOs, and monsters with scientific inquiry.
Great Big Story
Joe Nickell, The Truth Behind Paranormal Mysteries
Follow Joe Nickell, a seasoned paranormal investigator, as he debunks myths of ghosts, UFOs, and monsters with scientific inquiry.
Curated Video
Congressional Investigations
Congressional Investigations have uncovered some serious wrongdoing over the past 200 years. But where does Congress get the power to conduct investigations and how has it used that power throughout U.S. history?
Curated Video
Ineffective Assistance of Counsel
Legal scholar Nita Farahany (Duke) describes an unexpected area where neuroscience is having an impact in legal proceedings.
Science ABC
Does Sleep Deprivation Cause Body Aches?
Sleep deprivation is often linked with body aches, among other effects, such as the numbing of our senses, reduction of our reaction time, etc. This is because sleep allows the body to repair damaged cells and get rid of harmful...
Curated Video
Historical Relevance
Princeton historian of science Michael Gordin describes a set of attitudes that most practicing scientists have towards historians, philosophers and sociologists of science, and outlines ways in which appreciating the past might help...
Curated Video
Autism and Vaccines
UCL developmental psychologist Uta Frith describes how the hypothesis that childhood vaccines are linked to autism, while initially plausible, was subjected to rigorous scientific testing and found to be false.
Curated Video
Societal Neuromania
Legal scholars Nita Farahany (Duke) discusses the current societal preoccupation with neuroscience.