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Forums
4hv.org :: Forums :: General Science and Electronics
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Civilian Tri-copter For Environmental Research, ( Kickstarter, Phase 1).

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Ash Small
Sat Apr 26 2014, 08:18PM
Ash Small Registered Member #3414 Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
Patrick wrote ...

article related to Fukushima Neutron and critcality possibilities. Link2

That's 11 days AFTER we reported the criticality/meltdown here, and that report only says it MAY have gone critical. wink
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Patrick
Sun Apr 27 2014, 12:56AM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Yeah, but reliable information is hard to get. There's alot of people jumping to conclusions, and tepco holding out or conveniently not knowing important facts.
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Ash Small
Sun Apr 27 2014, 01:40AM
Ash Small Registered Member #3414 Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
Patrick wrote ...

Yeah, but reliable information is hard to get. There's alot of people jumping to conclusions, and tepco holding out or conveniently not knowing important facts.

If I recall correctly, the Caesium 134 and Caesium 137 that had already been detected could only have been produced 'post meltdown'. We weren't 'jumping to conclusions', and we reported it here either late on the 11th March or in the early hours of 12th March. I agree that all the 'official outlets' were 'playing it down', though.
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Patrick
Sun Apr 27 2014, 04:46AM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
I wasn't accusing you or everybody of hyping the danger or jumping to conclusions. But we do have a crazy group who insists smoke detectors cause thousands of cancer deaths a here in California. Not everybody who comments on these matters knows what there talking about.
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Dr. Slack
Mon Apr 28 2014, 08:28AM
Dr. Slack Registered Member #72 Joined: Thu Feb 09 2006, 08:29AM
Location: UK St. Albans
Posts: 1659
I wonder if there's anything in the concept of a graffiti drone that might reward your small investors Link2, perhaps spray a bunch of their names at some event (it would be far too time consuming and onerous to spray a bit of their houses, one at a time)
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Patrick
Mon Apr 28 2014, 09:19PM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Dr. Slack wrote ...

I wonder if there's anything in the concept of a graffiti drone that might reward your small investors Link2, perhaps spray a bunch of their names at some event (it would be far too time consuming and onerous to spray a bit of their houses, one at a time)
very cool!

anti-grafitti drones:

Jackson Pollock 7
Jackson Pollock 8
Jackson Pollock 9


Ha!

spraying grey, black, white, biege and brown texture piant would be easy.
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Patrick
Wed Apr 30 2014, 08:25AM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
It would appear I need 840 gaseous liters of hydrogen at STP, to get a 1 hour flight time, from a 1 kw fuel cell that weighs 1.9 kg. That weight doesn't include tankage mass or volume. Even at 800 psi that'd be a huge tank, as a sphere or pill.

Said PEM fuel cell (1kw ), would cost 18,000 US $, without tankage or other necessary parts.


I think it's back to pistons and alternators.....






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Patrick
Mon May 05 2014, 10:58PM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
im going into variable pitch in greater detail.

Link2








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Patrick
Tue May 06 2014, 04:45PM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
pics! Gen 4 will be ready for flight in 2 days!


1399394717 2431 FT162607 One

1399394717 2431 FT162607 Two

1399394717 2431 FT162607 Three

1399394717 2431 FT162607 Four

1399394717 2431 FT162607 Five
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Proud Mary
Wed May 07 2014, 03:49PM
Proud Mary Registered Member #543 Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Flying 3D printer could seal off nuclear waste Link2
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