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adamjb

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strategic transport modelling consultant, among other things

Posts25
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www.analyticflying.com 1y ago

Why Airlines Aren't Supermarkets

adamjb
3pts0
www.itnews.com.au 3y ago

Password-crackers and metadata used to check welfare users' relationship status

adamjb
3pts0
kamilkazani2.substack.com 4y ago

How did Russia get so big?

adamjb
62pts2
www.damemagazine.com 4y ago

Have We Forgotten How to Read Critically?

adamjb
2pts0
www.nytimes.com 4y ago

Her Instagram Handle Was ‘Metaverse.’ Last Month, It Vanished

adamjb
24pts6
magazine.nd.edu 4y ago

What Are We Doing?

adamjb
2pts0
www.theguardian.com 4y ago

Transport noise linked to increased risk of dementia, study finds

adamjb
95pts82
thebulletin.org 4y ago

Rebranding Chernobyl

adamjb
4pts1
www.vice.com 4y ago

Data Brokers Sell Access to the Backbone of the Internet

adamjb
14pts0
www.ehn.org 4y ago

Air pollution from household products is cutting people’s lives short

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2pts0
bostonreview.net 4y ago

Beyond the Nation-State

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2pts0
www.newyorker.com 5y ago

When graphs are a matter of life and death

adamjb
4pts0
www.harvardmagazine.com 5y ago

Active Grandparenting, Costly Repair

adamjb
1pts0
uncannymagazine.com 5y ago

The Protagonist Problem

adamjb
1pts0
faroutliers.wordpress.com 5y ago

The First Casualty of Tok Pisin

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4pts0
faroutliers.wordpress.com 5y ago

The First Casualty of Tok Pisin

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1pts0
www.vice.com 5y ago

We Feel ‘Alonely’ When We Don’t Get Enough Time by Ourselves

adamjb
1pts0
berthub.eu 5y ago

Stimulating Innovation with Money

adamjb
2pts0
aakinshin.net 5y ago

Misleading standard deviation

adamjb
2pts1
github.com 5y ago

Python Pattern Matching Tutorial

adamjb
5pts1
zeynep.substack.com 5y ago

Critical Thinking Isn't Just a Process

adamjb
4pts0
aeon.co 5y ago

The Problem with Prediction

adamjb
1pts0
www.sciencedirect.com 5y ago

Could consanguineous marriage be a cultural remedy for the obstetric dilemma?

adamjb
2pts0
nicheconstruction.com 5y ago

Niche Construction

adamjb
23pts3
www.vice.com 5y ago

The Broken Algorithm That Poisoned American Transportation

adamjb
9pts0

My one hope for AI, robotics, self driving cars, is that they can enable more people in cities to migrate back to rural places

Ah, the perennial dream of the technologist. Here's a Le Corbusier quote on the same theme from 100 years ago

The cities will be part of the country; I shall live 30 miles from my office in one direction, under a pine tree; my secretary will live 30 miles away from it too, in the other direction, under another pine tree. We shall both have our own car.

MATSim or ActivitySim are used for that sort of thing. Most modellers don't bother to simulate every individual person though. Instead they use a sample which they scale up because it isn't worth the order of magnitude more computing time when just simulating a representative 10% does fine.

Airbnb Q1 4 years ago

I find this to be an unintuitive metric, as nights that are part of longer bookings are oversampled as there are more nights in longer bookings

Useless outside the US? Ignoring the obvious objection, one of the design goals of the initial iteration of the NATO/ICAO phonetic alphabet was that every word in it would be familiar to you as long as you were fluent in either English, French or Spanish.

They successfully tested landing and taking off a loaded C-130 from a carrier in the 60s so I guess if you designed a new long range STOL airliner from the ground up it wouldn't be impossible and might even have a slim slim chance of being economical. But existing airliners, no way. And with the risks of carrier operations I don't reckon it'd be anywhere near as safe as 6 hour ETOPS.

https://www.youtube.com/watch?v=ar-poc38C84

Australia's Bureau of Meteorology calculates apparent temperature like this

AT = Ta + 0.33×e − 0.70×ws − 4.00

where:

Ta = Dry bulb temperature (°C)

e = Water vapour pressure (hPa) [humidity]

ws = Wind speed (m/s) at an elevation of 10 meters

The vapour pressure can be calculated from the temperature and relative humidity using the equation:

e = rh / 100 × 6.105 × exp ( 17.27 × Ta / ( 237.7 + Ta ) )

where:

rh = Relative Humidity [%]

http://www.bom.gov.au/info/thermal_stress/#atapproximation

How to skate a 10k 4 years ago

It was very normal for those in the Elite Athlete program at my uni to refer to themselves as elite athletes

Here are the rest of the 25 letter sets, found using brute force with the same 1 vowel per word with no repeated letters trick.

  [['brung', 'waqfs', 'vozhd', 'cylix', 'kempt'],
   ['brung', 'waqfs', 'vozhd', 'xylic', 'kempt'],
   ['jumby', 'waqfs', 'vozhd', 'clipt', 'kreng'],
   ['jumby', 'waqfs', 'vozhd', 'pling', 'treck'],
   ['jumby', 'waqfs', 'vozhd', 'prick', 'glent'],
   ['jumpy', 'waqfs', 'vozhd', 'bling', 'treck'],
   ['jumpy', 'waqfs', 'vozhd', 'brick', 'glent']]

I was a little inspired by this thread [0] about the practicality of implementing brute force algs in pure python for solving wordle. Using only built-ins and with a bit of optimisation [1] it runs in 4 minutes single threaded in cpython.

[0] https://twitter.com/eevee/status/1484716294179934209

[1] Instead of considering every possible combination, it discards non-optimal subsets. E.g. when considering o-words, only u- and a-word combos that already cover 10 letters are looked at. This significantly dampens the combinatorial explosion

Jevons Paradox 5 years ago

That's just the paradoxical thing about it though. With induced demand congestion doesn't improve so travel times don't improve, so there is the same (dis)benefit to moving as there was before and living elsewhere doesn't, or rather shouldn't, become an option.

I live in a suburb with a power station that was converted from coal to gas in the 70s. My older neighbours have told me that they had to careful when hanging clothes out to try, lest they got so dirty that they'd have to wash them again.