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Locked
BioFuels vs. Hydrogen economy
ElectricFetus
,
Jun 9, 2003
...
3
4
5
Replies:
98
Views:
17,111
guthrie
Nov 21, 2004
Downwind faster than the wind
billvon
,
Jun 4, 2013
...
3
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5
Replies:
97
Views:
9,053
KitemanSA
Jun 21, 2013
Locked
Gas pistol for self defence
Avatar
,
Jan 4, 2008
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3
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5
Replies:
97
Views:
10,797
[a-5]
Jan 14, 2008
Locked
Missile Defense
Roman
,
May 5, 2007
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5
Replies:
96
Views:
5,954
kmguru
Jun 8, 2007
Locked
What will be the most important invention in the military of the next century!
thecurly1
,
Jul 10, 2001
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Replies:
95
Views:
11,982
erich_knight
Sep 23, 2005
Locked
The Cube
Success_Machine
,
Feb 11, 2003
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5
Replies:
95
Views:
5,006
Jaxom
Feb 21, 2003
Locked
before the big bang,
EmptyForceOfChi
,
Nov 16, 2005
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3
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5
Replies:
94
Views:
5,683
D H
Dec 27, 2005
Pentagon admits that ghosts exist.
Neurostudent
,
May 24, 2022
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5
Replies:
93
Views:
9,157
Beaconator
Aug 16, 2022
Locked
Microcontroller thread #4!!!
cato
,
Dec 22, 2006
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5
Replies:
93
Views:
4,807
cato
Jan 20, 2007
Locked
Early technique in cutting stones
arauca
,
Jan 11, 2012
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5
Replies:
92
Views:
7,178
kwhilborn
Jan 13, 2012
Locked
Photo reading???
JimmyJames
,
Jul 17, 2001
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5
Replies:
92
Views:
76,667
NevroNils
Jul 18, 2011
How could human beings move out of Africa with so many large, fierce animals?
geek
,
Dec 6, 2017
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5
Replies:
91
Views:
8,284
RADII
Dec 27, 2017
Is Science Really Self-Correcting?
sculptor
,
Apr 12, 2016
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5
Replies:
91
Views:
4,432
Schneibster
Apr 18, 2016
Locked
Nomophobia. Do you have it?
scheherazade
,
Feb 18, 2012
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3
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5
Replies:
91
Views:
6,066
Stoniphi
Feb 25, 2012
Locked
I worry about my microwave
jack54
,
Dec 17, 2005
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3
4
5
Replies:
91
Views:
6,085
MetaKron
Dec 22, 2005
Locked
free electricity possible?
elct
,
May 24, 2012
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3
4
5
Replies:
90
Views:
9,018
DaS Energy
Aug 1, 2012
Locked
Science and Ideology
scilosopher
,
Nov 17, 2003
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3
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5
Replies:
90
Views:
5,374
scilosopher
Dec 13, 2003
Human presence in Arctic
paddoboy
,
Jan 14, 2016
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3
4
5
Replies:
89
Views:
4,418
paddoboy
Jan 20, 2016
When something is unknown, does Occam's Razor always take over?
garbonzo
,
Jul 25, 2013
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5
Replies:
89
Views:
9,531
billvon
Aug 9, 2013
Locked
Is Big Bang wrong?
Reiku
,
Dec 28, 2011
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3
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5
Replies:
88
Views:
6,952
RealityCheck
Jan 3, 2012
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