Spyke

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What part of Do Not Disturb are you not understanding?! 🤨

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That’s amazing! I once had a female goldfinch come and land on my Christmas light string (I’m lazy and leave the lights up all year round, though I only turn them on during the winter).

She would keep perching on the string and tapping at her own reflection in the window, like she was trying to show her reflection who’s boss! So cute to see such assertiveness from such a tiny bird!

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Graph Rule

As a Canadian, I say this with the utmost sincerity: if you’re thinking of moving here because you’re a leftist, don’t. Canada is about to take a huge swing to the right in next year’s election. People are extremely sick of Trudeau and his refusal to withdraw from the upcoming election (he’s been in power for 9 years) will take his party down with him.

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the evolution of the grass at Wimbledon due to racket technology

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Not hugely better, no. Marginally better, yes.

The racquet technology impact in tennis has been enormous, with the largest difference being size and weight. Traditional wood tennis racquets maxed out at around 65 sq in of string area but weighed up to 400 grams (mixed units, I know). A modern graphite tennis racquet can achieve 100 sq in of string area while decreasing the weight to 300 grams!

Lighter weights allow a player to generate a lot more racquet acceleration without killing their wrist. At the same time, the larger string area gives a lot more margin for error when striking the ball. Players in turn responded by changing their swing planes to a higher vertical angle, coming up over the back of the ball to generate a lot of topspin (and string technology helps with this too). The topspin further increases margin for error by making the ball dive down into the court instead of sailing long (see Magnus effect).

All of this has combined to allow tennis players to hit the ball far harder than they had in the past, with the increase far exceeding what you’d expect from physical training alone. Give modern players a traditional wood racquet and they’ll spray the ball all over the place, making huge numbers of errors, until they force themselves to not swing so hard.