If you think that cell phone toy that you bought your kid is cool, or remember the toy phone of your childhood, check this out – a set of toy phones out of 1927 Sears, Roebuck catalogue:
worth a read
Mars For The Rest of Us — a weekly-or-more deep dive on the technical side of Mars exploration: rocket propulsion, microbiology, mission architecture, and everything in between. Written by Maciej Ceglowski.
Read it on Substack →