Sylvain Miermont @miermont@social.cleverlibre.org

@gsuberland Ben Krasnow is such a great experimentator. Every month, or two, he comes up with a polished video explaining, in a very practical manner, some fundamental hard-core physics, or showing us a mind-boggling contraption.

@emmajdboland Big ice cube go brrrrrrrr

@th @solderandchaos to cover a whole campsite or conference center with low-throughput text communication that can be received by very low-power devices, Lora is probably more useful than Wifi. Can be used in a license-free 433/868/915 MHz or 2.4 GHz band, and any band you can get a license for between 150 MHz and 1 GHz (with the SX126x chips).

@solderandchaos Lots of interesting links posted in response to you question :)
It's not a "pager" per say, as bidirectionality is one of the core feature, and there is no infrastructure as in Pocsag, but have you looked at Armachat? https://hackaday.io/project/183657-armachat-pico-compact-long-radio-messenger

By some aspects they are the spiritual successors of pagers, as some of the essential characteristics of pagers (RX only to stay low-power, etc) were due to technical limitation at the time that are no longer obstacles.

#netZero #carbonOffsets #carbonCreditPrinterGoBrrrrrr #bullshitingOurWayToHothouseEarth

Anybody here interested to buy >500 #newOldStock high quality 2.7 inches #eInk #ePaper displays from #PervasiveDisplays? They're still factory-sealed in their original carton. Preferably in the Eurozone. My company is making some room.

@Meyerweb The scale of the destruction is hard to grasp. Arte did a short video last year. Starting at the 2:18 mark, you can see in the background the #lignite power plants that are burning all this extracted carbon and putting it directly into the atmosphere.
https://www.youtube.com/watch?v=m7xRkyTwr5A

Have you seen this pair of videos about what is means for an electric grid to collapse and what it takes to bring it back up?
https://www.youtube.com/watch?v=_OpC4fH3mEk & https://www.youtube.com/watch?v=uOSnQM1Zu4w
It's not about controlled shedding, the time-limited regional outages that are used to preserve an electric grid balance, but what happens after the balance is lost.

I think it's important that we all understand that:
- large outages are deadly industrial accidents, not just minor inconveniences
- it takes power to create power
- switching back on some generation capacity means also switching back on some consumers, and that's a delicate dance that requires time to ramp things up slowly
- most electrical infrastructure is remotely operated, with a limited backup capacity. Past a certain outage time, people need to be send to physically operate grid controlling devices, while transportation and communication are in a state of chaos, making the restart process exponentially more difficult and slower
- reliable and controllable power sources are key for the restart process, large hydroelectric dams are awesome for that, wind turbines are not

@Ruth_Mottram it's such a tragedy that destructive projects like that are taking place, but OTOH, wind turbines work only *within certain limits*, multi-days grid storage is a huge challenge, seasonal storage is a pipe dream. By being collectively in denial for the need of significant amount of reliable base-load power, we've backed ourselves in a corner.

In some people's mind, if grid availability becomes random, we'll simply decrease our consumption and change our habits, with infinite flexibility. In reality, any country that is not ready to accept total industrial subservience will (1) try to conserve any baseload option even the dirtiest one, and when all else fails (2) all entities with the means to do it will switch to off-grid diesel/gas/coal/wood generators.