We've all been flying high ever since the development of the jet engine in the mid-1950s. But why were jets were designed to fly at those high altitudes in the first place?

Paul Andersen introduces the concept of ethology and contrasts kinesis and taxis. He explains the importance of courtship rituals in fruit flies. He finally shows you how to use a choice chamber to study behavior in pill bugs.

In this video Paul Andersen explains how Kirchoff's Loop Rule can be used to calculate the voltage of different components of a circuit. The sum voltage throughout an entire loop will sum to zero following the law of conservation of...

How does heat affect airplanes? Turns out heat, speed and density connect to create dangerous situations.

Levers are a simple machine that help us make work easier. But how do they work and how can you make one to help you? Check out this episode with Squeaks and Jessi to learn all about levers!

Jessi and Squeaks just got a new telescope, and they can't wait to check out the night sky! But there's just one problem: it's too heavy to bring up the stairs into the observatory! Join them as they learn about a simple machine that can...

Mr. Andersen explains the simple principles behind simple machines. He shows how the mechanical advantage of a simple machine can increase the input force. A brief discussion of work is also included.

New ReviewWe have liftoff!

No cheating!

Welcome back to the Fluctus Channel, as we explore the complex and heroic world of aircraft and ship recovery operations.





Fluctus is a website and YouTube channel dedicated to sea geeks. Whenever you are...

Understand the forces of lift and drag (also called air resistance) and which way they point on different objects as they move through the air.

Learn how Bernoulli’s Principle helps create lift using a simple demo with a paper strip and hair dryer. Physics made clear, fun, and free with Mr. P!

Science Kids Amazing Animal Superpowers V1-0004

In this video transcript, we explore the incredible superpowers of elephants beyond their renowned super strength. From their versatile trunks that can delicately pick up a peanut to...

Exercise Moves for Your Office

How to Cook Easier With Arthritis

Howcast - Let belly dancer Irina Akulenko teach you how to do the belly dance move known as a vertical figure 8 in this Howcast video.

Howcast - Let belly dancer Irina Akulenko teach you how to do vertical hip circles in this belly dancing video from Howcast.

Howcast - Let belly dancer Irina Akulenko teach you how to double hip locks in this belly dancing video from Howcast.

Howcast - Let belly dancer Irina Akulenko teach you how to do chest circles in this belly dancing tutorial from Howcast.

Howcast - Let belly dancer Irina Akulenko teach you how to do the belly dance move known as a belly isolation in this Howcast video.

Howcast - Let belly dancer Irina Akulenko teach you how to do the belly dance move known as piston hips in this Howcast video.

Howcast - Let belly dancer Irina Akulenko teach you how to do snake arms in this belly dancing video from Howcast.

Howcast - Let belly dancer Irina Akulenko teach you how to do hip twists in this belly dancing video from Howcast.

Howcast - Let belly dancer Irina Akulenko teach you how to do wrist circles in this belly dancing video from Howcast.