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Measuring power network frequency using junk you have in your closet
(
halcy.de
)
78 points
by
zdw
6 months ago
|
past
|
18 comments
Transmitting data via ultrasound without any special equipment
(
halcy.de
)
142 points
by
todsacerdoti
7 months ago
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past
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43 comments
Measuring power network frequency using junk you have in your closet
(
halcy.de
)
1 point
by
asp1
11 months ago
|
past
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1 comment
How not to mess up your scientific talk
(
halcy.de
)
1 point
by
jack1243star
on May 2, 2017
|
past
Google threatens to close German office in reaction to internet surveillance law
(
halcy.de
)
3 points
by
tomh
on July 7, 2007
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past
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