Chemistry

Library of strange compounds

Library of strange compounds

George Pendle wrote the highly-recommended Strange Angel: The Otherworldly Life of Rocket Scientist John Whiteside Parsons, the biography of rocket pioneer Jack Parsons (whom I profiled in MAKE, Volume 13). In Saturday’s Financial Times, George writes about the Materials Library at King’s College, London. Deep in the bowels of a brutalist concrete building on the […]

Secret ink smorgasboard

Secret ink smorgasboard

Here is a nice round-up of some simple sneaky inks. The old favorites like lemon juice and vinegar are there, but also some more sophisticated systems using stuff like cerium oxalate and iodine fuming. From the pages of MAKE: Mike Golembewksi shows us how to make an invisible inkjet printer in MAKE 16 – Spy […]

Environmental test kits of my youth

Environmental test kits of my youth

I was out to dinner the other night with O’Reilly/MAKE’s Brian Jepson, his wife Joan, and our new Make: Online author Kipp Bradford. We were talking about the awesome Thames & Kosmos science and tech kits we carry in the Maker Shed. The conversation inevitably turned to chemistry kits of yore, the beloved kits of […]