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Hannah Fry Profile picture
Hannah Fry
@FryRsquared
All math and no trousers.
Mar 9, 2022 • 7 tweets • 2 min read
After an uncomfortable brush with some less than angelic corporations last year, I started digging into the green credentials of the various companies I’d invested in with my ISA and discovered what I imagine a lot of you already knew: there is a LOT of greenwashing going
on. There is something called an ESG rating that companies use to demonstrate their environmental credentials. If you have a stocks and shares ISA, you can look up the ratings of where your investments are. It might even give a rosy picture. The problem is ESG ratings are bollocks.
Jan 6, 2021 • 9 tweets • 3 min read
Irredeemably, y'say?

Well that sounds like a challenge.. Tell you what. How about this one as a start. A glorious and ingenious way to keep cake tasting delicious thanks to maths:

Mar 2, 2020 • 9 tweets • 5 min read
In a strange twist of fate, it seems the first coronavirus patient to be infected in the UK is from Haslemere -the very place we used for our 2018 citizen science experiment: the BBC Pandemic.

Here's a news piece from the time. Bit close to home, huh.

telegraph.co.uk/global-health/… It's an extraordinary coincidence. But for me, the most powerful bit of the original tv prog was this:

This is our 2018 simulation of the difference that everyone washing their hands 5-10 times a day might make to the spread of a flu-like virus.

See how much time it buys us?
Jan 28, 2020 • 13 tweets • 6 min read
Last week, the lovely folk at National Grid showed me around their amazing underground tunnels.

Lots of pics of the trip over on my Insta, but for you Twitter - the One True Kingdom of the nerds - I've got something much more exciting.

BECAUSE THEY ALSO SHOWED ME THEIR DATA. @nationalgriduk Okay okay okay. Let's start with a good one.

Ever heard about the electricity surge at the end of a popular tv show as we all stick on the kettle?

It's a uniquely British phenomenon and it's totally true. Here's the Britain's got talent final in 2005 as an example..
Jan 8, 2020 • 6 tweets • 3 min read
No. No it reaally can’t.

(Thread) There is BIG money involved in predicting the success of movies, books & music. Yet every decent past attempt to see into the future has failed.

Think about it. If it *was* possible would Cats be a thing??

Here, in 5 screenshots is a chunk on past attempts from my book. 1-3:
Nov 23, 2019 • 8 tweets • 3 min read
Over-hype in Ai: a thread. 1/8 Let's start with a story. Remember this one from last year? An algorithm that can tell if you're gay or straight from a single photo. It's a prospect that is both awesome and terrifying. 2/8

telegraph.co.uk/technology/201…
Aug 13, 2019 • 8 tweets • 3 min read
I want to tell you a little story about calculus.

Or, as I shall now refer to it, "Mathematical Alchemy" Image It started when these two real-life wizards, Newton & Leibnitz, came up with an unbelievably clever way to describe how things change, and in doing so, let the rest of us mere mortals spend the ensuing centuries wrestling the physical world into submission. Image