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#Sensors
Dan Herman in Canada
DanHerman
We know that #COVID19 is airborne. And we know that Co2 concentrations can show us where the risk of transmission is higher. So I took my @AirQ007 sensor to a
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Dr. Alex Huffman
HuffmanLabDU
1/ A on some #CO2 measurements in my home, car, school *AND* details/instruction on how to use dry ice for DIY estimate of #ventilation rates at your home or
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Paul Carnahan
pacarnahan
Clearing out a pile of ancient screenshots on my iPad and came across this classic from the undisputed Prince of Pish: And this, from the ever-oblivious Lil’ Loco: And remember
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Fidel Ca$hflow$ 🔨🔨💰💰
rafaqazi
It’s Monday and I am bored so for all you $VLDR $LAZR & $CFAC junkies here’s a technical thread on how LIDAR works and why $CFAC's Aeye tech *could* be
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Alexander Graef
alxgraef
The #Openskiestreaty docs published by #Russia yesterday also include the manuscript by S. Ryabkov from the state conference on July 6. His speech (in Russian) includes one surprisingly blunt remark
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Rowan 9️⃣9️⃣9️⃣9️⃣9️⃣ 💎🙌🏼
rowantrollope
During the pandemic, we saw *Zoom Boom* as many went WFH. PREDICTION: Post Pandemic, those who return to offices will cringe at the state of video HW in their rooms,
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Eben Cross
ARISense_AQ
I'd be careful w. a blanket '25% of truth' declaration, esp. for indoor environments where larger particles (dia > 1 um) may be important. Boils down to physics and light
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Chamath Palihapitiya
chamath
Are you interested in decarbonization, sustainability and climate change and want to do something about it?I need help allocating a few $B into these areas over the next 2-3 years
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Prof Cath Noakes 😷 💙
CathNoakes
Lots of people looking to measure CO2 in buildings to assess ventilation, so here's a few thoughts. You should be looking for CO2 below 1000ppm, and ideally around 800ppm BUT
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David Elfstrom
DavidElfstrom
1. Thank you @normsworld and @TCDSB for undertaking this #COVIDCO2 study. Some observations below (Thread)https://twitter.com/normsworld/status/1361317932412915712 2. The sensor used was a ELSYS ERS CO2, a good choice because it also
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Sleepwell Capital 🛏
SleepwellCap
A Distant Force: Teledyne Thread (yes, THAT Teledyne) $TDY Teledyne gained some fame among value investors given it was profiled in The Outsiders. Long-time CEO Dr. Henry Singleton was
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visa is AFK working on @introspectVV
visakanv
Strange and funny first-principles-y conversation with wife: if you wanna fix problems, you need to have some kind of model in your mind for how problems get fixed. I think
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Guy Sie
GuySie
So being stuck in our appartment gives me ample time to start debugging my home automation.Like getting Hue light scenes working in @home_assistant - this turned out to be incredibly
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Abayorr Mi
iamabayorr
10 Most Heavily Guarded Places in the World.A THREAD 1. Havenco Limited.Located approximately six miles from the coast of Suffolk, southeast England. It is situated on the top of large
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John Lilly
johnolilly
1/ Lots of hot takes on Apple Fitness+. From folks who train a lot and some who don't. From people who have a Peloton and those who don't. From people
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Niyi Akinmolayan
niyiakinmolayan
Let me tell you a story. I’ve always been baba dudu. Dad mum siblings all black. We had zero insecurities about it. Infact I always saw baba dudu as a
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