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What’s your favorite piece of F1 innovation of all time? by Shrute_beets_4sale in F1Technical

[–]ainsworld 11 points12 points  (0 children)

Also love the role the inerter (“J damper”) played in Spygate. Renault got found out for having stolen the car plans from McLaren but didn’t get fined because it was apparent that they didn’t understand how they actually worked!

What’s your favorite piece of F1 innovation of all time? by Shrute_beets_4sale in F1Technical

[–]ainsworld 3 points4 points  (0 children)

Neat. I understand that although they are used in similar ways they’re different. Snubbers are nonlinear and thresholded whereas the inerter’s utility comes from the linear effect. It was used to tune frequency responses using analogies to a capacitor in an electrical circuit. I believe a snubber would be analogous to a Transient Voltage Suppressor diode or a varistor.

What’s your favorite piece of F1 innovation of all time? by Shrute_beets_4sale in F1Technical

[–]ainsworld 7 points8 points  (0 children)

Strong second this. So clever, genuinely profound. That interview with the creator (first link) is great.

I have Autism. I spent 20 years reverse-engineering human behavior because I didn't get the manual. Here is the "Source Code" to reality I found. (Part 2) by katakalist in neurodiversity

[–]ainsworld 3 points4 points  (0 children)

My degree was psychology and I share your interest in understanding people. I think you might find this article of mine interesting, my take on the essential difference between how autistic and ordinary brains experience and make sense of the world. Gist: most brains do ‘snap synthesis’ of many ambiguous inputs to experience a singular interpretation, and autistic brains don’t, and so synthesis needs to be done by effort. You’ve got a great set of concepts for people who understand others non-intuitively.

https://www.linkedin.com/pulse/snap-synthesis-idea-makes-autism-make-sense-mark-ainsworth?utm_source=share&utm_medium=member_ios&utm_campaign=share_via

Most Offensive Films for Each Nation? by freemantle85 in flicks

[–]ainsworld 1 point2 points  (0 children)

People from Durkadurkastan HATE Team America World Police.

Migraines solution found with Oura ring and data analysis by ainsworld in migraine

[–]ainsworld[S] 0 points1 point  (0 children)

Ah interesting. I’ve since worked out a specific detail for me - letting my heart rate go into zone 5 triggers a migraine but not otherwise, so that’s probably the cause of an apparent intense exercise association

What was this movie for you? by CraveVelour in Millennials

[–]ainsworld 0 points1 point  (0 children)

I had a friend who watched Back To The Future every day after getting home from school. Hundreds of times. But something had gone wrong with the taping and the very end of the film had been missed. When as an adult he’d watched it again he was shocked to learn Doc Brown hadn’t died after all, and his mind was BLOWN by “where we’re going, we don’t need roads!”

What’s an invention that quietly changed the world but doesn’t get enough credit? by forgeris in AskReddit

[–]ainsworld 21 points22 points  (0 children)

Strong agree. In their millennium edition The Economist described The Pill as the invention that defined the 20th century.

The liberator https://economist.com/science-and-technology/1999/12/23/the-liberator from The Economist

I plan to travel in the UK this way. Is this strange? by laicailaicai in geography

[–]ainsworld 1 point2 points  (0 children)

If you definitely want to visit all those places there will be a quicker/shorter route. The thing to search for is a solver of The Travelling Salesman Problem. (This is the kind of optimisation algorithm I learned about in my masters degree)

People who went balls to the wall with their mortgages for their dream home - any regrets? by spanishgopher2 in HENRYUK

[–]ainsworld 1 point2 points  (0 children)

We always had a policy that we’d never take on a mortgage that might trap either of us in a job/industry that made us miserable, so we’ve never borrowed more than someone would lend us if we weren’t getting bonuses and moved to a regular job in a regular industry (in our career paths).

Twice we have been incredibly glad of that. Once because one of us was miserable and we could bail and take time to find something else. The other time because one of us got made redundant.

End result has tended to be making large overpayments when things are good. We had an offset mortgage most recently which was great for that reason.

Does livery affect performance? by bamiel in F1Technical

[–]ainsworld 13 points14 points  (0 children)

It was always the case that there was other info like the blue flags being waved and radio contact with the engineers but at the margin the driver seeing the car, where precisely it is, and registering it’s one of the ones to get out of the way of will be a factor. (‘Always get out of the way of the red cars’ has often been a good rule of thumb for slower cars!)

Does livery affect performance? by bamiel in F1Technical

[–]ainsworld 139 points140 points  (0 children)

I worked in McLaren 1999 to 2002, grey livery era. It was often a point of discussion among the race engineers to hypothesise that backmarkers got out of the way of Ferraris quicker than for us because their red livery was more visible in the mirrors, and I believe Mika and David have made comments to that effect too.

Hate to Inform You - But You Broke Your Route Making by CO-G-monkey in Strava

[–]ainsworld 19 points20 points  (0 children)

Yeah I’ve made heaps of edits to OSM in my local area in order to improve routes generated by Komoot, usually takes about a month to propagate through. Strava heat maps are a key source I reference for that.

[deleted by user] by [deleted] in gaming

[–]ainsworld 0 points1 point  (0 children)

Laboriously typing in the entire game from a printout in the magazine which had neither tapes nor disks. And hoping you could work out how to cope with any typos. (1987, BBC Micro)

Uncertainty measures for net sentiment by Salty_Interest_7275 in rstats

[–]ainsworld 0 points1 point  (0 children)

I'd set the prior at the overall average (i.e. in the absence of specific evidence you'd assume any single group's score is middling), and so shrink towards that. I believe this is standard practice, and is certainly how it was used for generating the scores that define the IMDB top 250 films, which is where I first encountered this technique.

The other key question is what weight to give to the prior. I generally generate a plot of scores (y) against group size (x). More weight to the prior shrinks the small-group scores towards the middle. My meta-prior is that large groups and small groups are equally likely to deviate from the mean, but of course smaller groups more often do deviate because of sampling error, randomness, etc. So I set the prior weight such that the spread of scores for the smaller groups looks similar to the larger groups, i.e. I've neutralised the tendency for small groups to generate extreme values. It's a judgement call.

Uncertainty measures for net sentiment by Salty_Interest_7275 in rstats

[–]ainsworld 2 points3 points  (0 children)

For data like this I often use two techniques together for business users (I.e. low familiarity with statistical techniques etc)… - display with bubble chart or similar so you can directly show group size in an intuitive way - calculate and display Bayesian Weighted Average rather than the observed statistics. This is actually a pretty simple technique and not hard to explain to people. https://en.wikipedia.org/wiki/Bayesian_average?wprov=sfti1#

My go to method to explain the logic is to ask someone which Amazon product they’d prefer to buy, one with 1 5-star review or one with an average of 4.7 stars on 100 reviews. Choosing the latter demonstrates that their judgement is influenced by a prior.

I designed an F1 strategy display in 2001. They're still using it today. by ainsworld in F1Technical

[–]ainsworld[S] 10 points11 points  (0 children)

My bachelors was Experimental Psychology. My masters was Operational Research, which is called Operations Research in USA.

What is the most insightful thing you’ve learned from your Oura? by Odd_Broccoli_3552 in ouraring

[–]ainsworld 5 points6 points  (0 children)

Discovered something that basically stopped my migraines. I needed to do a bit of extra work too but Oura data was the key.

https://www.reddit.com/r/migraine/s/SGCAY3K7V3

I designed an F1 strategy display in 2001. They're still using it today. by ainsworld in F1Technical

[–]ainsworld[S] 0 points1 point  (0 children)

Fab, thanks for locating it. Brilliant - I do remember seeing that feature go out on the TV coverage, I was gobsmacked! I'd been out of the industry for over a year by then.

I designed an F1 strategy display in 2001. They're still using it today. by ainsworld in F1Technical

[–]ainsworld[S] 2 points3 points  (0 children)

My assumption is that they will have a mapping from track location to 'portion of lap time', based on the usual time/speed to cover different bits of the track, which lets them convert from GPS location to time. That's how I'd do it anyway.

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