09-September-2024 Monday
Infrared photography at different wavelengths
21-December-2021 Tuesday
Reply to the post "How I bought a gun, or a brief instruction for everyone (and why you should hurry up)"
06-July-2021 Tuesday
Interferometer made of matches and acorns
10-February-2020 Monday
About coffee and caffeine (or what someone doesn’t care about doing)
18-June-2019 Tuesday
moon and wires
10-June-2019 Monday
Photo in infrared
v20240901
