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How does a mass spectrometer work?

A mass spectrometer is an important analytical instrument which scientists can use to identify the amount and type of different chemicals in a substance. In this explanation I’ll go through how the mass spec...
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Answered by Michael L. • Chemistry tutor
85392 Views

How to do well in the HAT?

The History Aptitude Test is designed to test the way a prospective Oxford Historian approaches and analyses new information and uses their own knowledge to compare and contrast different arguments. To this ...
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Answered by Frederick N. • HAT tutor
8361 Views

What do I know about getting good marks in IB History?

IB History places an emphasis on different skills than traditional A-levels, it is a course designed to test your historical method rather than your factual knowledge. If we take the coursework as an example...
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Answered by Frederick N. • History tutor
4188 Views

How do I prove that an irrational number is indeed irrational?

[NOTE: An irreducible fraction (or fraction in lowest terms) is a fraction in which the numerator and denominator are integers that have no other common divisors than 1.] Given that p is a prime, positive in...
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Answered by Liam D. • Maths tutor
10053 Views

How do I structure an analytical paragraph whilst analysing a poem?

Planning: Make sure you're planning the paragraph separately first; use bullet points. Start off by identifying which theme you're going to discuss in this paragraph. Underline a few quotes from the poem tha...
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