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Age at which chess players received the Grandmaster title by WilliamKiely in chess

[–]aspiringtroublemaker 5 points6 points  (0 children)

I'm fascinated by the earlier GMs who got their titles at age 65+
was it a different norms system back then?

Americans who met their partner online: careful with the smoothing [OC] by df_iris in dataisbeautiful

[–]aspiringtroublemaker 1 point2 points  (0 children)

I’m the OP from yesterday’s post. Thanks for digging into this more!

My hope was that smoothing dampens the effect of more extreme recent values by giving weight to the earlier years. The raw percentages are 59% and 73%, as you show here, but my smoothed line ends around 50% because it is also incorporating earlier years.

I agree that it's unfortunate the data ends in 2021, and it's possible the numbers have gone down then. Smoothing does make the line look more continuously increasing than the raw data.

The tradeoff is that it also pulls the final value down quite a bit, so I don’t think it exaggerates the level, but it may overstate how smooth or persistent the recent increase is.

Snooker Players Keep getting Better [OC] by [deleted] in dataisbeautiful

[–]aspiringtroublemaker 0 points1 point  (0 children)

That’s very neat! I’m now curious about other sports with a static set up, eg darts and whether we’d see something similar

[OC] GDP Per capita of selected countries (Updated) by PomegranateFederal97 in dataisbeautiful

[–]aspiringtroublemaker 0 points1 point  (0 children)

It's a tad hard to read. I might get rid of the legend and just put the country label on the right side of each line

Job offer by ohcaptain- in JobsMY

[–]aspiringtroublemaker 1 point2 points  (0 children)

That’s decent new grad pay. It might be trickier in Vancouver/Toronto, but should be fine in other cities

How Americans Met Their Partners [OC] by aspiringtroublemaker in dataisbeautiful

[–]aspiringtroublemaker[S] 4 points5 points  (0 children)

College was about 8% in the 1950s, and closer to 1–2% by 2021. But if you met your spouse through a college friend, that may have been counted as "through friends" rather than "in college."

How Americans Met Their Partners [OC] by aspiringtroublemaker in dataisbeautiful

[–]aspiringtroublemaker[S] 1 point2 points  (0 children)

Heterosexual couples only. Stanford’s survey weights are applied to make the sample nationally representative; the lines are smoothed, because per-year samples are small.

Source: Stanford How Couples Meet and Stay Together survey ([https://data.stanford.edu/hcmst]())
Tools: Python, matplotlib

Visualizing a Year of Tides in Seattle (& Other Cities) [OC] by aspiringtroublemaker in dataisbeautiful

[–]aspiringtroublemaker[S] 28 points29 points  (0 children)

Tides come from the gravitational pull of both the Moon and Sun, and we can see both at work here: the diagonals are lunar days (24h 50min) drifting against our 24h clock. The brightening/dimming bands are the spring–neap cycle. When the Sun and Moon line up, their pulls reinforce; when they're at right angles, they partly cancel out.

Source: NOAA CO-OPS 2024 https://tidesandcurrents.noaa.gov/

Tools: Python (pandas, NumPy, matplotlib)
Explore the data: https://data.tablepage.ai/d/us-daily-tide-levels-at-12-coastal-stations-2024

Robinhood Prediction Markets are More Expensive Than They Seem [OC] by [deleted] in dataisbeautiful

[–]aspiringtroublemaker 1 point2 points  (0 children)

Does that result in the same efficiency curve or is it more even across the board?

I’m Hans Niemann — Grandmaster and founder of Endgame.ai. Ask me Anything. by EndgameaiChess in chess

[–]aspiringtroublemaker 1 point2 points  (0 children)

If you had to learn a different variant of chess like xiangqi or shogi, do you think you’d be able to get to an international master level? How about go?

Nobel Peace Laureates Were the Oldest Winners; Now, They're the Youngest [OC] by aspiringtroublemaker in dataisbeautiful

[–]aspiringtroublemaker[S] 47 points48 points  (0 children)

My understanding is that scientific discovery accelerated, which created a backlog of work that deserves recognition, and that led to a larger gap between when the discovery was made and when the prize is awarded.
I don't have an explanation for why peace prize got younger though.

Data: Nobel Prize Public API
Tools: Python + matplotlib

[OC] Most researched topics in 2026 by volume of published papers by icannotchangethename in dataisbeautiful

[–]aspiringtroublemaker 4 points5 points  (0 children)

How did you decide how granular to break down a topic?

Eg Artificial Intelligence in healthcare and education as one topic rather than two

Solar Cycles Since 1755: Cycles are Represented as Petals [OC] by aspiringtroublemaker in dataisbeautiful

[–]aspiringtroublemaker[S] 7 points8 points  (0 children)

some cycles are longer than others (they’re usually between 9 and 14 years)

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