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How were the vaccines tested?
Like any medical drug, vaccines are tested in large-scale randomised controlled trials.
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How effective are the vaccines — and how do we know this?
The efficacy of vaccines is estimated from trials, using statistical techniques.
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Since herd immunity will protect us all, why do I need to get vaccinated?
Because the vaccine may not stop transmission of the virus.
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Are the vaccines safe?
Yes the approved vaccines are safe. If you balance the risks, then taking the vaccine is much safer than taking your chances with COVID-19.
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What's the price for relaxing the rules?
We are all longing to go into a lower tier, but this can come at a high price later on.
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Some lovely proofs by picture
Don't like trigonometry? Don't worry, here are three beautiful proofs of a well-known result that make do without it.
News story
Giving numbers meaning
Our favourite communicator of risk talks about the statistics of COVID-19, the quality of government briefings, and how to counter misinformation.
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Maths in a minute: Triangular numbers
Triangular numbers: find out what they are and why they are beautiful!
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Physics in a minute: The double slit experiment
One of the most famous experiments in physics demonstrates the strange nature of the quantum world.
News story
Universe Unravelled
We're proud to announce the launch of a documentary we have been working on together with the Discovery Channel and the Stephen Hawking Centre for Theoretical Cosmology in Cambridge.
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The fingernail problem and metallic numbers
A beautiful geometric problem opens the door to the world of metallic numbers.
News story
Clearing the air: Making indoor spaces COVID safe
New research shows that ventilation is crucial and that masks are effective.