The head of a pin is about 2mm in diameter. Use this animation to compare the relative sizes of cells and organisms sitting on a pinhead. Nearly invisible without magnification, dust mites dwarf pollen grains and human cells. In turn, bacteria and viruses are even smaller.
Import and edit slide shows and videos
Quickly add photos and footage from your PC or camera into Movie Maker. Then fine tune your movie just the way you want it. You can move things around, speed it up or slow it down-it's up to you.
What causes sea level rise? Why is the average sea-level rise around Australia higher than the global mean? And why is the sea rising at different rates around Australia?
This song explains how the decay of a radioisotope has a half-life and how to use that half-life to solve decay problems. Corny but clear science. May appeal to some students!
Journey back in time to the Ice Age and witness one of the world's deadliest animal killers - the tar pit. With enough force and consistency to kill a fully grown mammoth, was crude oil the biggest threat to species survival in early Earth?
Your Baby's Development in Pictures
The following sequence of pictures shows an overview of the development of a human from fertilisation, into embryo, then foetus and child. Some pictures are photographs and some are ultrasound images. You can jump to a more detailed description of events by clicking on the weekly number above each picture.
Experience
WorldWide Telescope
Immerse yourself in a seamless beautiful environment.
From web to desktop to full dome planetarium, WorldWide Telescope (WWT) enables you to explore the universe, bringing together imagery from the best ground and space-based telescopes in the world and combining it with 3D navigation. Experience narrated guided tours from astronomers and educators featuring interesting places in the sky. You can research and import your own data and visualize it, then create a tour to share with others.
A web-based version of WorldWide Telescope is also available. This version enables seamless, guided explorations of the universe from within a web browser on PC and Intel Mac OS X by using the power of Microsoft Silverlight 4.0.
A two-song medley: "Microbes, They Might Kill You" and "We Are the Microbes" is a parody of Queen's "We Will Rock You" and "We Are the Champions," as performed by Carl Winter.