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Astronomical regulator clock - Charles Frodsham, 1865

This is an eight-day astronomical regulator clock made by Charles Frodsham and Co. of London in 1865.

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The biggest radio telescope in the world

In the past, astronomers explored the universe with their eyes and optical telescopes, but what they could see was limited. Find out how radio telescopes have revolutionised the way astronomers 'see' the universe, allowing us to explore deeper into space than ever before.Watch this clip to learn about Australia's contribution ...

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AWA radiosonde atmospheric measuring instrument, 1947-48

This is a radiosonde, an atmospheric measuring instrument, manufactured from metal, cardboard, fabric and plastic by Amalgamated Wireless (Australasia) Ltd, New South Wales. It comprises electronic components held within a waterproofed cardboard box that has been insulated on the inside. Printed on one side of the box is ...

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Leitz illuminator for microscope

This Leitz illuminator provides improved contrast imaging when used with a microscope. It was manufactured by Ernst Leitz and used by Commonwealth Serum Laboratories, Victoria. It measures 31.0 cm (length) x 12.0 cm (width) x 27.5 cm (height), and it is part of the CSL Collection at Museum Victoria.

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Photograph - Great Melbourne Telescope, c1870

This is a black-and-white photograph showing the Great Melbourne Telescope at Melbourne Observatory, 1870s-1880s.

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Photograph - eight-inch transit telescope, Melbourne Observatory, c1890

This is a black-and-white photograph showing the eight-inch transit telescope erected in the East Transit Room at Melbourne Observatory.

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BBC Bitesize: time - revision 2

These illustrated information sheets revise a range of ideas about time, including time units, reading analogue and digital clocks, and calculating time intervals. Questions with answers are included and students have access to a multiple-choice test to assess their learning. The resource includes access to an interactive ...

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BBC Bitesize: time - revision 1

These illustrated information sheets revise ideas about time including time units, converting between analogue and digital time and interpreting timetables. Questions with answers are included and students have access to a multiple-choice test to assess their learning. This resource is one of a series of online resources ...

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Thinning ice sheet

Discover that that the massive ice sheet in East Antarctica has been losing mass since 2006 instead of growing, as was previously thought. Watch animations to see how scientists from NASA and Australia are using satellite technology and aerial monitoring to investigate the thickness of East Antarctica's ice sheet. Find ...

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The amazing 'angle-a-tron'

Lost your protractor? Well, find out how to make an 'angle-a-tron'. This might just be the coolest mathematical tool you've ever used. Measure all sorts of angles. It's easy with an angle-a-tron!

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How do you measure angles?

See how to use a protractor to measure angles. Watch how the correct placement of the protractor and reading the scale help to ensure accuracy.

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Drawing a pie chart

Pie charts are a way of representing data. In this clip, see how to convert data from a table into a pie chart. Using a survey of tree types as an example, you'll be shown two ways: the first way looks at getting a value in degrees for one tree to be represented on the pie chart; the second way uses fractions. Which way ...

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Measuring length and distance

What instrument do you use to measure the length of something? Watch this clip to see how that depends on what you are measuring. Is it a straight, short piece of wood? Is it a long, slithering python? What about a football pitch or the distance you walk to school? See what measuring instruments are used.

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Australia's deep space research

Did you know that Australia is home to one of the three NASA Deep Space Network facilities? Watch this clip to find out about some of the ground-breaking research on the solar system being undertaken at the Tidbinbilla facility. Discover why Australia was chosen to participate in the Deep Space Network (DSN).

Interactive resource

Far out lenses

Look at the Moon through a simple telescope. Adjust the focal length of two convex lenses and compare the results. Explore relationships between optical variables such as focal length, position of objective lens, convexity, image inversion and lens size. This learning object is one in a series of two learning objects. The ...

Interactive resource

Reading between the lines

Test the vision of four people to identify vision problems: myopia, hyperopia or presbyopia. Compare effects of corrective lenses on reading at different distances. Look at a cross-section of the eye showing focal variations linked to a vision problem. Explore how common vision problems are by doing a survey. This learning ...

Teacher resource

Using 'Microscope skills' - Teacher idea

This Teacher idea is an introduction to the knowledge and skills secondary students require to work with microscopes and to the application of these skills in practical science activities. It includes a unit of work developed and trialled by a teacher.

Interactive resource

Optics and refraction: focal point

Look at light rays magnified by a lens. Notice how light converges after it leaves the lens. Examine how curvature and thickness of a lens affect focal length. This learning object is one in a series of three objects. The series is also packaged as a combined learning object.

Interactive resource

Optics and prisms

Position a prism to split white light into its component colours. Predict the seven colours that will be produced. Test whether the colours seen are affected by the prism material: glass, flint glass or diamond. Explore whether filters add or remove colours from the spectrum. This learning object is a combination of three ...

Interactive resource

Optics and prisms: coloured light

Position a prism to split white light into its component colours. Explore whether filters add or remove colours from the spectrum. This learning object is one in a series of three learning objects. The series is also packaged as a combined learning object.