The largest pterosaurs like Quetzalcoatlus were closer in size to airplanes than birds. No flying animal alive today comes close to their huge size. So did giant pterosaurs actually fly? I went to see the fossil bones of the largest...

A look at what turbulence is (in fluid flow), and a result by Kolmogorov regarding the energy cascade of turbulence.

A look at what turbulence is (in fluid flow), and a result by Kolmogorov regarding the energy cascade of turbulence.

Diving under the Antarctic ice to get close to the much-feared leopard seal, photographer Paul Nicklen found an extraordinary new friend. Share his hilarious, passionate stories of the polar wonderlands, illustrated by glorious images of...

A look at what turbulence is (in fluid flow), and a result by Kolmogorov regarding the energy cascade of turbulence.

In this video Paul Andersen details the action potential in neurons. The resting potential of a neuron (-70mV) is maintained through differences in concentration and permeability of Na, K, and Cl ions. A graded potential is created as...

Paul Andersen explains the major plants structures. He starts with a brief discussion of monocot and dicot plants. He then describes the three main tissues in plants; dermal, ground and vascular. He also describes the plant cells...

So, electric current works like a river... kinda... Instead of flowing based on elevation, electric current works a little differently. But it's a good metaphor. In this episode of Crash Course Physics, Shini talks to us about electric...

Today, we continue our exploration of fluids and fluid dynamics. How do fluids act when they're in motion? How does pressure in different places change water flow? And what is one of the motion annoying things about filming outside on a...

Paul Andersen explains how nutrients and water are transported in plants. He begins with a brief discussion of what nutrients are required by plants and where they get them. He shows you dermal, vascular and ground tissue in monocot...

The cross sectional area of the drag force demonstrated.

Uncle Gobb and the Green Heads – Chapter 1, Part 4

A video entitled "Rectangular Prism Cross Sections" which shows the shape of various cross sections of the 3D figure.

How to find the cross section. We investigate how to predict what shape the cross section will be when it is parallel or perpendicular to the base of a cone, cylinder, cylinder, or prism.

Why a seemingly random phone poll incorrectly predicted the outcome of the 1936 presidential race... because of a hidden bias. Maths - Statistics And Probability A Twig Math Film. Reinforce and extend the learning required by the...

This video covers how to calculate the volume of cylinders and prisms. It includes examples of each and a sample exam question.



This video is suitable for maths courses around
the world.
KS3 - All
on your course...

Cross sections are an important mathematical concept; however, cross sections are also used throughout the world around you. Dig a little deeper to understand cross sections and identify the two-dimensional shapes formed with a cross...

This brief video tutorial discusses the anatomy of the thoracic and abdominal wall: 0:00​​. Introduction 0.18. Thoracic skeleton (ribs, costal cartilage, sternum) 4:56. Muscles of the trunk wall (intercostal muscles, abdominal muscles...

What are the odds that 3 'random' points on a sphere will form an acute triangle?

This video tutorial discusses an Introduction to Histology (study of tissues): 0:00​. Intro 0:35. Hierarchical organization of living matter 1:56​. H&E stains 3:00​. Epithelium overview (characteristics and classifying scheme) - 9:12....

This brief video tutorial discusses the digestive system (GI tract): 0:00​​. Introduction 0:18. Digestive organs - 0:24. Oral cavity. Teeth, salivary glands - 2:18. Esophagus - 3:50. Layers of the GI tract. Mucosa, submucosa, muscularis...

This brief video tutorial discusses the anatomy of the kidney: 0:00​​. Introduction 0.14. Ureter - 4:25. Kidney stones (referred pain) 6:33. Bladder and Internal urethral sphincter 12:52. Urethra 15:50. Intravenous pyelogram (IVP) 16:30....

Is this shape a circle, a square, or both? The 3D printed "ambiguous cylinder" illusion by Prof. Kokichi Sugihara seems impossible. Learn how it works and how to make your own at Science