Debbie Mitchell’s Reviews > The Invisible Killer > Status Update
Debbie Mitchell
is on page 150 of 224
I am delighted that DU got a shout out!
(specifically Don Steadman who developed a spectroscopic sensor to measure emissions of vehicles while on the road)
— Mar 24, 2025 08:27PM
(specifically Don Steadman who developed a spectroscopic sensor to measure emissions of vehicles while on the road)
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Debbie’s Previous Updates
Debbie Mitchell
is on page 75 of 224
Just finished the chapter on lead in gasoline and WOW. I knew about how awful Midgley is —but I didn’t know the motivation for finally removing tetraethyl lead was the invention of catalytic converters. Ofc
— Mar 24, 2025 11:10AM
