The tutor's blog

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The joy of Post-Its

The joy of Post-Its

We all have those tit-bits of information that we find hard to remember. I have many, but one that is constantly irritating me is the one that tells you what component of weight acts along the inclined plane and what component acts perpendicular to it? Is it cos or...

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A nice thank you card

Dear Stuart, Thanks for all the support through this stressful time. You've made physics fun & entertaining. Thanks for all the help. Best wishes, Tom

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Congratulations to Leonora

Received a text yesterday .... "Hi, Stuart. I wanted to let you know that Leonora got a B in maths and an A in physics so she is super happy! Thanks again for all your hard work with her. Sophie" Makes it all worthwhile.

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Pluto, at last

Pluto, at last

So the waiting is finally over. Well, it is, sort of. We have out first images of Pluto, and they are mind blowing. What an amazing achievement to get a spacecraft in the right place to take such amazing photographs. They answer lots of questions, and pose many, many...

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Less than a month to go

Less than a month to go

One of the most exciting events ever will happen in just less than a month. On 14th July, the space probe New Horizons will make its closest approach to Pluto. It'll be moving pretty fast (!) so it won't have long close to the planet, but it will be frantically...

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Do something impossible before  breakfast

Do something impossible before breakfast

Given: a = b Multiply by a: a2 = ab Subtract b2: a2 - b2 = ab - b2 Factorise: (a + b)(a - b) = b(a - b) Divide by (a - b): (a + b) = b Substitute for b: a + a = a Simplify: 2a = a Divide by a: 2 = 1 Clearly, this is impossible. So where's the error? Answers on a...

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