Bell’s Theorem Way

A street in Belfast is to be named after the late John Stewart Bell, a quantum physicist whose work has had a huge impact on modern physics and quantum information theory. Bell passed away in 1990, before he could be awarded a Nobel prize for his work, and Belfast Council have agreed to name a street in his honour.

However, in an awesome twist (since they avoid naming streets after people’s full names) rather than calling it ‘John Bell Way’, it’s going to be called ‘Bell’s Theorem Way’, after his most famous work. That’s nice!

The theorem, which relates to the distinction between quantum mechanics and classical mechanics, states:

“No physical theory of local hidden variables can ever reproduce all of the predictions of quantum mechanics.”

Presumably the first corollary of Bell’s Theorem will now be, ‘no left turn onto Queens Road’. The decision to name the street will be made at the next council meeting.

More Information

Belfast street to be named after John Stewart Bell, at BBC News

Bell’s Theorem, on Wikipedia

via Simon Singh on Twitter

‘All that glitters is not golden': a Fibonacci Day Roundup

Golden ratio cake, from alittleshopintokyo.blogspot.co.ukYesterday was 23/11, also known in some parts as 11/23, and you may recognise this as being a date made of the first four Fibonacci numbers. (Such numerical date-based Fibonacci coincidences haven’t been as exciting since 5/8/13, but at least this is one we can celebrate annually.) This meant that mathematicians everywhere got excited about #FibonacciDay, and spent the day talking about the amazing sequence. Here’s a round-up of some of the best bits, so you can celebrate Fibonacci day in style.

Watch out! I’m a blue whale and I’m about to land on you!

whale

I don’t know why this question popped into my head, but it’s been sitting there for the past week and showing no signs of moving on.

Suppose an enemy of mine threw a friendly blue whale at me. Being a friendly whale, it makes the blue-whale-noise equivalent of “DUCK!” to warn me it’s coming.

How quickly does the whale need to be travelling for its warning to be useful?