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dan613, to climate
@dan613@ottawa.place avatar

We have all the tools needed to avoid the coming #ClimateCrisis. Don't let anyone tell you we can't or we shouldn't.

#ClimateAction

wall0159,
@wall0159@aus.social avatar

@dan613

(I have supported strong action on climate change for over 20 years, and I still do, but..)

I think this is simply not correct. Taking action to "safeguard our future" requires considerably more than shifting 2% of our wealth.

We need to radically alter many fundamental aspects of how society works, including

  • energy
  • agriculture
  • transport
  • manufacturing

I think it's dangerous to understate the reality of what is required.

This claim reminds me of Nordhaus' dangerously-misguided remark that climate change will have a negligible effect because agriculture is only 3% of GDP

wall0159,
@wall0159@aus.social avatar

@GreenFire, well given the global economy is averaging about 3% annual growth, reallocating 2% p.a. away from fossil energy implies 1% p.a. growth in fossil energy consumption. Do you think that's compatible with future human flourishing?

@dan613

jpm, to random
@jpm@aus.social avatar

A 600dB truck horn, for when you need to deafen God from across the universe https://www.aliexpress.com/item/1005006139224416.html

wall0159,
@wall0159@aus.social avatar

@jpm dB is a logarithmic scale. Every 3dB is double the energy. A plane taking off is about 130dB, and there are about 170 energy doublings to get to 600 dB. I'm guessing the energy of a 600 dB horn would be like a super nova ;-)

wall0159,
@wall0159@aus.social avatar

@jpm that's a good point - I didn't think of that!

Though I wonder what 200 doublings of moving a hydrogen atom would be..?

brood, to random
@brood@zirk.us avatar

download everything. that service is going to die. be your own librarian.

wall0159,
@wall0159@aus.social avatar

@hugoestr i still listen to 50c audio CDRs that i burned 20 years ago @hazelnot @brood

stfn, to random
@stfn@fosstodon.org avatar

I finally bought an 18650 charger, something I've been planning for a long time

#18650battery #xtar

wall0159,
@wall0159@aus.social avatar

@stfn that's cool. What do you use the cells for?

PaulWay, to random
@PaulWay@aus.social avatar

A friend at work tells me that Rio de Janeiro, where he lives, hit a new peak of 60.1 Celsius from Sunday to Monday.

At what point do I ask him whether he drives a petrol car, or cooks using fossil fuels?

Never? Because that's not polite or helpful?

wall0159,
@wall0159@aus.social avatar

@PaulWay agree, but I'm unconvinced that the type of car makes at much difference as many people think

wall0159,
@wall0159@aus.social avatar

@PaulWay, thanks for your considered response.

I agree in principle with everything you've said, though I would emphasise that the most significant thing we need to do is behavioural change, and that simply spending money doesn't cut it.
Electrification is a necessary but insufficient step -- we must combine electrification with a significant cut in consumption -- both of time-of-use-energy, and manufactured/embodied energy.

To manufacture a new petrol car releases about 10 tCO2, and to manufacture a new electric car releases about 15-20 tCO2. Some simple maths shows the problem if Australia replaces its car fleet (20 million cars).

Simply, we can't make 20 million cars (of any type) and remain within our carbon budget (though currently, due to accounting trickery, we pretend that emissions that occur in China are a Chinese problem, even though they are manufacturing the goods that we buy)

Because of this, we must, as a matter of priority, move away from the private car as a model of transport. This is the reason that my family's predominant transport is bicycle and public transport. This is doable for most Australians, but it takes some effort.

fifischwarz, to scifi Dutch
@fifischwarz@waag.social avatar

'Everybody needed a cup of tea sometimes.'

8/52 ★★★★☆

Delightful, wholesome, heart-warming.

@boeken
@bookstodon

wall0159,
@wall0159@aus.social avatar

@fifischwarz @boeken @bookstodon I really loved this book - heard about it on Mastodon. Have just read the sequel, which is also great

wall0159,
@wall0159@aus.social avatar

@fifischwarz @boeken @bookstodon I've read the first Wayfarer only and loved it too. Shed a few tears... I've reserved the second at the library ;-)

wall0159,
@wall0159@aus.social avatar

@fifischwarz @boeken @bookstodon oh yeah, I know what you mean :-) it's great to discover a fabulous new author and have their whole back-catalogue ready to read - such promise!

mcc, to random
@mcc@mastodon.social avatar

The phrase "I want someone to invent the AK-47 of ebikes" keeps drifting through my head

wall0159,
@wall0159@aus.social avatar

@whitequark @mcc I've just taken delivery of a bafang Mid drive. Looking forward to installing it on my cargo bike!

Daojoan, to random
@Daojoan@mastodon.social avatar

When I was in my early 20’s, I hustled my ass off. I worked 2 jobs and a side hustle. I drank 8 cups of coffee a day and popped No Doz pills to work at night.

And then I burned the fuck out. And crashed hard.
And it wasn’t worth it.

There’s a lot of folks who will tell you: “grind to the point of exhaustion. Chase wealth and rest later. Make work your only religion.”

That advice is poison. It will leave you broken and hurt and tired and alone.

wall0159,
@wall0159@aus.social avatar

@Daojoan the other thing I've realised over the years: this striving is considered a virtue, but at root it's nothing more than competition for resources

simon_brooke, to random
@simon_brooke@mastodon.scot avatar

That's the wind turbine almost completely ready to go back up. There are two more washers I want to replace before it goes back up to the top of a tall mast exposed to driving wind and rain, and I'll need to order those. But it's mostly done.

The almost fully rebuilt turbine, with the cowling closed up. The three bladed air screw can be seen leaning against the wall behind it, and the nose cone is on the floor to the left of the picture. Behind the nose cone are salvaged parts from the generator which got destroyed, which will be kept as spares.

wall0159,
@wall0159@aus.social avatar

@simon_brooke @withaveeay just note (for other people) that this turbine requires wind at 10 m/s (36km/h or ~26 mph) to generate 250W.

For this to be useful, you need to be in a windy location and elevate the turbine above all wind obstacles within about 100 m

wall0159,
@wall0159@aus.social avatar

@simon_brooke
Scotland is certainly blessed with abundant wind resources! :-)

@withaveeay

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