RT @ArnoldNiessen: Vliegen: CO2 niveau boven 800 ppm betekent te weinig ventilatie, en treedt volgens deze reiziger vooral op bij in- en ui…
RT @ArnoldNiessen: Fly: CO2 level, this means too little ventilation, and acts according to this traveler especially on at entry and onion above 800 ppm ...
Mathematician, IT guy, musician and justice supporter! Right now: advocating Corona containment strategy in NL to stop the 2nd wave!
Mathematician, IT guy, musician and justice supporter! Right now: Corona advocating containment strategy in the Netherlands to stop the 2nd wave!