Sunday 31 March 2024
Away from Teaching
It looks like a good day to get on with some reorganisation of the classroom as I can't do much sailing today and the classroom certainly needs a tidy.
Saturday 30 March 2024
Memory
Different types of memory from 1K chips to 32Gb RAM Modules and much in between. The students learnt how they work and everything about RAM and ROM.
Friday 29 March 2024
Order of Reactivity
Thursday 28 March 2024
Tension Protractor
When you need the @pascoscientific tension protractor, nothing is quite like it. The Zipline practical becomes a breeze when you know the force and direction, which are otherwise difficult to calculate or measure.
Wednesday 27 March 2024
Sicherman Dice
These dice have the numbers 1-2-2-3-3-4 and 1-3-4-5-6-8, but give the same sums with the same probabilities as two normal 1-to-6 dice. The only difference is the odd of rolling a double which as usually 6/36 are 4/36 for the Sicherman dice.
Tuesday 26 March 2024
Seebeck effect
Thermoelectric generation using a Peltier Module to utilize the Seebeck effect to generate voltage. When heat is applied to one of the two semiconductors, heated electrons flow toward the cooler semiconductor. If the pair is connected through an electrical circuit, direct current flows through that circuit.
Monday 25 March 2024
Cheek cells +
What are all those little black things with my cheek cells asked a student, looking down the microscope at his freshly prepared cheek cell slide. These are bacteria. He went and brushed his teeth immediately and prepared a new slide.
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Momentum
It's easy to understand how to stack the near-frictionless @pascoscientific trollies on top of one another to increase the mass two or...
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Negative feedback is a difficult concept to try and get over so I tried using a balance board and the @pascoscientific smart cart strapped...
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Getting a classic set of results for the titration of NaOH and HCl is not that difficult but it is nice when we can get students to this ...
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Mechanics: the grand meeting of Maths & Physics! Using strobe light & a ball drop for gravity-acceleration calculations and SUVAT fo...