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Richard Walker

Earworm

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I'm currently suffering from an earworm. An earworm is a snatch of music that you can't get out of your head. In my case it's "The clouds will soon roll by", sung in 1932 by Elsie Carlisle, with Ambrose and his orchestra.

Somewhere the sun is shining
So, honey, don't you cry
We'll find a silver lining
The clouds will soon roll by

This keeps popping into my head at odd moments throughout the day. I'm familiar with it from the sound track to the BBC series Pennies from Heaven but I haven't listened to it for ages. Why I should suddenly think of it now I don't know. Maybe the optimism of it appeals to me.

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Richard Walker

Two Daffinitions

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Paradox: Two dogs.

Orthodoxy: Look at all those dogs!

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Richard Walker

One Liner

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My friend replaced his chandelier with a ceiling fan. I never looked at him in the same light again.

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Richard Walker

One Liner

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Is graffiti doomed? The writing’s on the wall.

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Richard Walker

mindlessness haiku

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Spell-checker claimed

No word mindlessness exists

Wrong, see OED.

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Richard Walker

One Liner

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I read today open-minded people have a different perception of reality. Oh no we don't.

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Richard Walker

One Liner

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I come from a family of comedians. For example, my Mum and Dad, Mr and Mrs Kerr, decided to name me Joe.

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Richard Walker

A Quick Geometric Problem

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Michael Penn put this up on his YouTube channel earlier today, and it is indeed an elegant little problem. Here it is


Michael Penn solves this using congruent triangles, the angle sum of a triangle (180 °) and angles on a straight line (180 °). α is always 60 °, whatever the length of AD and CE. It's not that obvious and I was quite surprised.

However thinking about it later, I saw we can solve the problem using symmetry and the solution is super-nice. Here's how - just add a third line.



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Richard Walker

When we were very young

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When I was in infant school they taught us to read. The phonetic method was used (I see in hindsight), so “can” is “c” for cat, “a” for apple, and “n” for night, and there you have it. It doesn’t work very well, but it’s a good start.
 
There we were, two dozen or so, and we are reading Janet and John out loud. “L-o-o-k J-a-n-e-t s-a-y-s J-o-h-n”. It doesn’t totally work but if you listen to yourself, you can work out most words. The story helps a lot of course. 

Our teacher offered a gold star to the first person in the class who could read silently. I’m not a gold star person personally, and I was bored by it all. So to pass the time I stopped speaking and just pretended to be reading.

Wow big mistake! Up comes Teacher who says “Oh look class, Richard can read silently”. On the spot or what? From that time I couldn’t read out loud without being exposed as a fraud, and I more or less instantly found out I’d been able to read silently all along.

I’ve no idea what reminded me of this.

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Richard Walker

A Reason for Optimism

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Richard Walker

At The Races

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Edited by Richard Walker, Friday, 20 Nov 2020, 22:13

Just been watching an Egg and Spoon race. Very surprised the Spoon didn’t win.

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Richard Walker

Outlaws

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The authorities are after a couple of bad guys. Apparently they are Juan, Ted.

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Richard Walker

One Liner

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grovellingapology.com

It’s a sorry site.

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Richard Walker

Scarebears

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This fearsome creature is a robot wolf.


The city of Takikawa in Hokkaido has been having problems with bears venturing into the city after food.

So the city has invested in robot wolves with motion detectors. The robot wolves have bared teeth, flashing red eyes, and a repetoire of 60+ noises that bears find frightening. A bit like a mechanical scarecrow, but for bears.

You can see a robot bear in action here

https://www.theguardian.com/world/2020/nov/11/japanese-town-deploys-monster-wolf-robots-to-deter-bears



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Richard Walker

How Big Was The Round Table?

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Edited by Richard Walker, Wednesday, 18 Nov 2020, 01:22

Thinking about the Round Table Puzzle 

https://learn1.open.ac.uk/mod/oublog/viewpost.php?post=232912

I wondered how many seats there are supposed to have been at the Round Table and whether communication (or even staying out of the rain) would have been feasible.

From the Wikipedia article Knights of the Round Table I got some useful information. Many have written about the Round Table, but among them the seating statistics can be summarised as follows

minimum 12
mode (commonest value); in the range 100-300, let’s say 200
maximum 1500+

What we want to know is the diameter of the table, and since this is only a back-of-an-envelope estimate we’ll say pi = 3. And ignoring social distancing it would be fair to assume each knight occupied 1 m of circumference.

My calculations

Minimum 12/3 = 4 m; big table, you’d need to shout; table easily fits indoors.
Mode 200/3 = 60+ m; loud hailers required; can be accommodated in a banqueting hall.
Maximum 1500/3 = 500 m (half a km!) ; telecoms required; only possible outside.

This post is a summarised preprint of a piece I plan to submit to Significance.
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Richard Walker

One liner

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Edited by Richard Walker, Tuesday, 17 Nov 2020, 22:07

My latest book is about turtles. It's only available in hardback.

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Richard Walker

Supper Tonight

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The garnish on the noodle is a seaweed, aonori, also called green laver.

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Richard Walker

A Riddle

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Q. What word is not the same as itself?

A. My answer: "Any word, apart from 'itself', but my favourite is 'sausage'."

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Richard Walker

Contradicting oneself

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Have you ever thought–when you say, "I can't say fairer than that"–you just have?

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Richard Walker

Cicada joke

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I didn’t get this one at first. Then it clicked.

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Richard Walker

Dialogue

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“Can I use the dial please?”

“No! It’s mine all mine, bwahaha!”

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Richard Walker

Groaner

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Edited by Richard Walker, Saturday, 14 Nov 2020, 22:25

Q. What goes "99, 100, Phew!"

A. A centipede counting its legs.

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Richard Walker

Round Table Puzzle

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Edited by Richard Walker, Saturday, 14 Nov 2020, 22:21



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Richard Walker

Pademelon

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Edited by Richard Walker, Friday, 13 Nov 2020, 23:30

This intersting little animal is a pademelon, a kind of marsupial, related to kanaroos and wallabies.


I had never heard of pademelons, but the name came up in a quiz tonight. There are seven species but the Wikpepdia article is a bit sparse on detail.

Here's a video from of young pademelons playing.

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Richard Walker

Cats on Cushions Puzzle

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Edited by Richard Walker, Friday, 13 Nov 2020, 02:15

This is a sawn-down version of a puzzle "Arranging cats and dogs" that Matt Parker recently posted on YouTube.

In our version we have a pair of cats, and eight cushions. We want to seat each cat on its own cushion, with the restriction that they cannot occupy adjacent cushions, in case they start a cat fight. Here is one possible arrangement.


You see the cats are not next to one another, so the rule is satisfied.

The question is: how many possible arrangements are there? What if there were 9 cushions? Or 10? Can you give a general formula?

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