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• TLF-IDM015413

Imagine an asteroid, half the size of a football field, hurtling towards Earth at a speed of 28,000 kilometres per hour! Watch this clip to find out about Asteroid 2012 DA14 and whether it poses any threat to Earth. You will also discover why mining prospectors are keen to capture asteroids such as this one. Could the next ...

• TLF-IDM015925

Discover how people milked cows before milking machines existed. Do you think you could milk a cow by hand? Watch this short clip to find out how it's done. Look at the special features (parts) of cows that store their milk and release it during milking.

• TLF-IDM020774

This is a video (4:09 min) about the University of New England’s Kirby Research Station and how its work with sheep has been transformed by technology, particularly the Radio Frequency Identification (RFID) tag. The video is presented by members of the Enhanced sheep wellbeing and productivity research program and includes ...

• TLF-IDM020605

Listen to electrical engineering student Kulsoom Hussain describe her dream career. What are some of the challenges she says she'll face in trying to achieve her goals? What can you find out about the energy sources used in Australia? How much renewable energy is used to power our country?

• TLF-IDM008886

This is a colour video clip of marine scientist Dr Miles Lamare describing the process used to electronically tag sea stars. The clip shows Dr Lamare, from a New Zealand university, being interviewed. It also shows footage of Dr Lamare in the laboratory attaching a tag to a sea star; as well as sea stars moving in water ...

• TLF-IDM015866

Do you know where your bread comes from? Discover how many other foods can be made from wheat flour. This clip tells the story of wheat from the farm to the factory. See how the big machines in a flour mill make flour from grains of wheat.

• TLF-IDM015435

Have you wondered what it would be like to be an astronaut floating around in the International Space Station? In this clip, Catalyst's Dr Derek Muller investigates what causes this weightlessness in space. Derek challenges some people visiting the Powerhouse Museum in Sydney to explain why they think astronauts float. ...

• TLF-IDM016162

Students learn about the application of light refraction by completing a series of tasks based on light refraction using both concave and convex lenses.

• TLF-IDM016028

Discover a method for catching eels while watching how archaeologist Dr Heather Builth works scientifically, at Lake Condah to determine whether the Gunditjmara community were truly nomadic or used advanced farming techniques to support their way of life.

• TLF-IDM015776

Discover the many ways that people eat fish. Watch how the fish called tuna are caught and made ready for sale. Find out how some tuna is farmed and how the tuna farmer meets the needs of these tuna.