#### All numbers are not equal

An introduction to the various types of numbers which are recognised as important.

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It is hard to believe there was a time before batteries! Batteries and supercapacitors are at the heart of electric vehicles, portable devices (watches, laptops, mobile phones) and renewable resources like wind and solar, for energy storage. Bette....

More details | Watch now#### Centripetal force – how do we measure it?

A short video showing a simple classroom method of checking the way in which this force is related to mass, speed and radius.

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An introduction into the writing down of fully balanced chemical equations. The process is explained starting with word equations, finding all the relevant formulas and then working with some useful rules for finding the correct coefficients in the b....

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A description and demonstration of the way in which craters formed by dropping objects into sand can be linked to some elementary physics

More details | Watch now#### Do Touch Ep 1 | Preserving Plant Material

**Introduction to systematics & DIY plant preservation techniques. **
In this first webisode of Do Touch, Daniel Domínguez invites young scientist and collectors to Label, love, & learn about the world. The aim of this seri....

#### Estimation – Educated Guesswork?

How can we make sensible estimates of very large numbers? It is often very important to know the size of an unknown number, at least to within a factor of ten.

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How can we represent fractions in the simplest way? Equivalence of decimal and common fractions.

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An approach to adding and subtracting fractions, using an understanding of the processes involved.

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Address for GEOSET TECHNICAL INFO www.geoset.fsu.edu/GEOSET_TECH/index.html

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Advert for the new 'GEOSET Studios' based in Dirac Library at Florida State University. The facility is open to all students and staff, so come in and broadcast your inspiration!

More details | Watch now#### Going round in circles – how do we do it?

A presentation showing both the ideas about centripetal force and a simple classroom method of checking the way in which this force is related to mass, speed and radius.

More details | Watch now#### Measuring the speed of pulses

A short clip showing the experimental measurement of the speed of electrical pulses in a cable - a large fraction of the speed of light.

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A presentation showing how to measure the speed of sound over a short distance on a laboratory table.

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A short clip showing the measurement of the speed of sound over short distances.

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The concept of oxidation and reduction is explained and generalised using oxidation numbers with ionic and covalent examples. Several equations are balanced, using the oxidation number method to fix various atomic ratios.

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Making life easy when using percentages. A sometimes fraught topic looked at differently.

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They're awesome to have in the kitchen, but did you ever wonder how your microwave actually works? This is a quick introduction to the theory that makes our home microwave ovens possible. Here, Daniel covers the differences between microwave heati....

More details | Watch now#### Science With Acquah – Ask Steve (Episode 1)

What makes thunder? What makes a volcano erupt? This and many more questions....

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