On the 30/11/22 the Science and Technology Committee and Health and Social Care Committee met to discuss the UK's Covid response and pandemic preparedness. I have compiled some highlights, some of which did not reassure me. 🧵
First to give evidence Sir John Bell, from Oxford University. Here Sir John talks of the longevity of immunity from boosters vs natural infection. He advocates immunity through infection but only seems to consider death. What of other outcomes or long-term impacts and the CEV?
Jun 6, 2022 • 23 tweets • 18 min read
After working on a DIY personal HEPA filter unit I thought it might be fun to work on a DIY particle detector. 🧵
So I did.
Even Dave the Lego Dude got in on the act.
The design is based around a Sharp GP2Y1010AU0F sensor and the popular ESP8266 Wifi-equipped micro-controller.
It also has a small OLED screen display and a fan for airflow.
Dec 17, 2021 • 12 tweets • 10 min read
So as promised, yesterday I conducted a relatively simple test of my small desktop HEPA filter unit. Let me walk you through it.
(1/12)
The first step was a design modification based on something @PlasticFull said to me and I quote “HEPA hates leaks”. It was clear to me that my V0.1 slots for the HEPA filter were just too wide for the filter thickness, so a quick re-cad and 24 hours later, V0.2 was born.
(2/12)
Dec 10, 2021 • 12 tweets • 4 min read
Unbelievable!
The school urgently contacts parents regarding "experiencing a rise in COVID-19 cases".Few email exchanges later here's the summary
🔹They won't tell me if cases are reported in a class
🔹National Contact Tracing will trace those deemed close contacts
and lastly..
"I can advise you that the situation is monitored very closely and we are in regular contact with the Health Protection Team. If at any point further measures are required they will be implemented immediately and families notified accordingly."
