A few good machining engineering photos I discovered:
:)*
Image by The hills are alive*
If you’ve got the time go genuinely large. It is worth it.
Electronic sound effects you can make with the Science Fair …
electronic bird
electronic cat
electronic bird with CdS
2 way electronic bird
chicken peeping
knocking noise
woodpecker sound
light controlled electronic harp
T-transistor toy organ
wireless electronic organ
light-music maker,
electronic metronome
electronic motorcycle noise
machine gun sound generator
sound effects generator
sleep inducer
Drilling for Terrestrial Heat
Image by Kecko
This mobile gear can drill to a maximum depth of 300 m. Now they go down to 165 meters. Lutzenberg, Switzerland, Oct 1, 2008.
Adjustable Reamer in Hand Chuck
Image by tudedude
(Source from rapid prototyping from China blog)
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