On November 16th, Meredith Whittaker, President of Signal, published a detailed breakdown of the popular encrypted messaging app’s running costs for the very first time. The unprecedented disclosure’s motivation was simple - the platform is rapidly running out of money, and in dire need of donations to stay afloat....
Sorry everyone, I did try searching the lemmyverse for any previous postings of this article using “signal” in the search feature on my instance, but it turned up nothing at the time.
Hi! I’m over here on lemmy, and created this post as a link to your post. I don’t think there’s a mutually compatible way to repost/boost a mastodon post into a lemmy community, but this seemed close enough.
As per the quote below, a car loses about 0.08g of tread per km.
Compared to a car, a bike tyre is about the same diameter, 10% of the width (~20mm), 28% usable tread depth (~2mm), has 50% less wheels, and can travel 10% the distance (~10000km).
This suggests a (very approximate) tread loss of 0.08 * 10% * 28% * 50% / 10% = ~ 0.01g per km for bicycles.
For replacing longer car journeys less typically travelled by bicycle, rail transport is the best solution and removes the issue of tyre wear.
Using the same assumptions as above (215/60R16 tires, 7mm of tread loss over 100,000 km), I estimate the loss of tread by volume from each tire as follows:
Cylinder with a diameter of 664 mm and a height of 215 mm has a volume of 74,412 cm3. Cylinder with a diameter of 664-(2x7)=650 mm and a height of 215 mm has a volume of 71,307 cm3. The volume difference between a new and worn out tire is 3105 cm3.
Typical land to sea ratio of tires is 60-70% land, depending on the type of tire. If we go with an about average value of close to 65% tread, we get the lost rubber volume of about 2000 cm3 or 2,000,000 mm3 over a single tires lifespan.
Each revolution of a tire loses about 0,04 mm3 of tread, which, according to Wolfram Alpha, is a bit less than the volume of a medium grain of sand.
If we look at the entire car with 4 tires over a kilometer of road, we get 80 mm3 or about 0,08 grams of tread lost per car per kilometer.
“The group got the idea for the conings by chance. The person claims a few of them walking together one night saw a cone on the hood of an AV, which appeared disabled. They weren’t sure at the time which came first; perhaps someone had placed the cone on the AV’s hood to signify it was disabled rather than the other way...
<span style="color:#323232;">“We all play a role in keeping our roads safe and Crime Stoppers Victoria is offering vulnerable pedestrians the tools they need to use our roads safely,” she [Crime Stoppers Victoria Chief Executive Stella Smith] said.
</span><span style="color:#323232;">
</span><span style="color:#323232;">“We have seen 175 pedestrians killed on our roads over the last five years, and a significant number of those have been in 60 km/h zones.
</span><span style="color:#323232;">
</span><span style="color:#323232;">“We hope with more education and awareness we can reduce the number of injuries and most importantly, deaths on our roads.”
</span><span style="color:#323232;">
</span><span style="color:#323232;">As part of the campaign, Crime Stoppers Victoria will hit the streets to actively engage with high-risk pedestrians to educate them on how they can help keep our roads incident-free.
</span>
I guess that means police will be out in force handing out fines to pedestrians and cyclists. “Job done!”
Signal Facing Collapse After CIA Cuts Funding (kitklarenberg.substack.com)
On November 16th, Meredith Whittaker, President of Signal, published a detailed breakdown of the popular encrypted messaging app’s running costs for the very first time. The unprecedented disclosure’s motivation was simple - the platform is rapidly running out of money, and in dire need of donations to stay afloat....
Google docs infects html exports with google tracking redirects. (fosstodon.org)
@Joe_0237 wrote:...
Tire Dust Makes Up the Majority of Ocean Microplastics, Study Finds (www.thedrive.com)
[Australia] Government to overhaul privacy laws, including opting out of advertising, a right to be forgotten, and new rules for small businesses (www.abc.net.au)
Related material, not all as optimistic as the ABC news article:...
Lithium discovery in US volcano could be biggest deposit ever found (www.chemistryworld.com)
It's so nice to see them all growing, but this is just the truth, sorry. (lemmy.ml)
*Munches Table Quietly* (discuss.tchncs.de)
But you need a car in case you want to buy a lawn strimmer with your weekly shopping in Lidl! (feddit.uk)
Activist Group Is Protesting Driverless Cars by Disabling Them With Traffic Cones (www.vice.com)
“The group got the idea for the conings by chance. The person claims a few of them walking together one night saw a cone on the hood of an AV, which appeared disabled. They weren’t sure at the time which came first; perhaps someone had placed the cone on the AV’s hood to signify it was disabled rather than the other way...
150bpm (lemmy.world)
Pedestrians and cyclists implicated for their own mortality by Victoria Police in road safety education campaign. #australia (themooraboolnews.com.au)
Excerpt from article:...