Architectural engineering, environmental design, permaculture.
Physics of the atmosphere, optics, compsci, science and technology.
Econ dev/redev, SMEs.
Banner art credit: Valerius de Saedeleer.
The replacement satellite, to be deployed this year, will be twice as long. Anetannas can operate behind wood, so a second antenna will be installed inside the satellite for use in case the exterior antenna does not unfold.
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Japan built a micro-satellite (10x10x10 cm) with wood panel sides made of honoki magnolia. It was deployed from the International Space Station last year, successfully orbiting the Earth for 116 days, despite failing to make radio contact for unknown reasons. Perhaps its antenna did not unfold, or software did not load. A replacement will be deployed this year.
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Thailand to send 284 tonnes of e-waste back to US
Containers found at Laem Chabang were falsely claimed to hold scrap metal from Haiti
This happens all over the world. There is a growing e-waste crisis and the Global North solution is to dump e-waste in the Global South by mis-labelling and all sorts of other tricks. Often, e-waste is sent as "second hand" equipment. The whole tech industry is built on a growing cesspit of toxic waste.
"if the total vehicle tends to survive, the vehicle can be separated
into two or more less survivable segments during reentry"
https://www.researchgate.net/publication/252732286_The_Realities_of_Reentry_Disposal
For those not seeing my boosts, another important article: archive.today (also archive.ph, archive.is, …) are altering the pages they archive. Read the whole thing.
(Note: archive.org is unrelated and is great!)
https://arstechnica.com/tech-policy/2026/02/wikipedia-bans-archive-today-after-site-executed-ddos-and-altered-web-captures/
Sending aircraft to help document how to better design reentry friction demise of artificial satellites.
#ESA #Satellites #UpperAtmosphere #SatelliteReentry #ReentryFriction #SatelliteDisposal #DesignForDemise
Distributed Acoustic Sensing (DAS) will listen for #whales at California floating offshore wind farms.
#FiberOptics #DistributedAcousticSensing #DAS #WindPower #FloatingOffshoreWind #FOWT
Earlier generations of Si-PV last longer, for example the original Si-PV cell (1 cm thick), 70 years old, is still operational.
"The thickness of the solar cells has been decreased... These changes have rendered the cells more brittle and susceptible to fracture while handling, storage and lamination of the module."
5/
#PVdecay #ewaste #EOL #obsolescence
https://www.researchgate.net/publication/331501514_Cracks_in_silicon_photovoltaic_modules_A_review
Newer PV is thinner, cracking easier, shortening lifespans, causing concern that multiple PV product generations will expire at the same time.
"Due to silicon cell cracking, Photovoltaic (PV) module reliability issues are gaining great attention due to the increasing demand for solar power and the reduction of cell thickness to reduce cost."
4/
#Energy #IndirectSemiconductor #WaferThickness #MicroFracture #TractionSeparationDelamination
iPHA
Gerry McGovern
Debbie Goldsmith 🏳️⚧️♾️🇺🇦