This video explains the components of a cell, including the cell membrane, cell wall (in plant cells), and cytoplasm. It also discusses the differences between animal and plant cells and introduces the concept of cell organelles.

This video provides an introduction to biology, covering the characteristics of living organisms such as composition, metabolism, growth, reproduction, and evolution. The video also discusses the unifying principles of life and how to...

Asano Naganori, lord of Akō domain, fixed his gaze on Kira Yoshinaka, a senior master of ceremony. Asano extended his short sword, charged through the castle, and struck Kira. While the wound wasn’t fatal, its consequences would be. What...

Scientific discovery isn't as simple as one good experiment. The weird and wonderful history of cell theory illuminates the twists and turns that came together to build the foundations of biology.

You're swimming in the ocean when something brushes your leg. When the tingling sets in, you realize you've been stung by a jellyfish. How do these beautiful gelatinous creatures pack such a painful punch? Neosha S Kashef details the...

A powered paraglider offers stunning views in the jagged landscape of Alaska's Chugach Mountains and Knik Glacier. ➡ Subscribehttp://bit.ly/NatGeoSubscribe' target='_blank' rel='nofollow'>Subscribe About National Geographic: National...

SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...

Howcast - Learn how to say "son" and "daughter" in Mandarin Chinese in this online language lesson from Howcast.

Howcast - Learn how to make your own eco-friendly cleaning supplies in this Howcast video featuring Alegre of Green and Greener.

Howcast - Learn how to animate a bird flying from Joe Vena of the Children's Museum of the Arts in this stop motion tutorial from Howcast.

Howcast - Learn how to make a head for your puppet from Joe Vena of the Children's Museum of the Arts in this stop motion animation tutorial from Howcast.

Howcast - Learn how to create a clay character from Joe Vena of the Children's Museum of the Arts in this stop motion animation tutorial from Howcast.

Add multi-digit whole numbers when no carry is needed.

Demonstration of a custom-built bluetooth dual-motor remote control car. Both car and remote control use Arduino Uno and Arduino Nano microcontrollers respectively, with independent HC05 bluetooth modules that are programmed to...

Alex Wolf gives a presentation about Burmese python natural history, research, and management at the Fairchild Tropical Botanical Garden in Miami, Florida (24:21 minutes).

David Remnick speaks with Lisa Brennan-Jobs about her début memoir, "Small Fry", and what it's like being the daughter of Steve Jobs. Still haven’t subscribed to The New Yorker on YouTube ►►ttp://bit.ly/newyorkeryoutubesub'...

Howcast - Learn how to decide if you need archival products in this Howcast scrapbooking tutorial featuring expert Carla Sylvester.

Howcast - Learn how to animate clouds from Joe Vena of the Children's Museum of the Arts in this stop motion tutorial from Howcast.