A good ghillie suit can break up your silhouette in visible light and IR.
It wouldn't mask you against an evenly heated background, but there's usually enough variation in your environment to make it hard for someone to spot you through an IR scope.
This
page
has some sample photos. (taken with a grain of salt since they are marketing their product, but still a fairly accurate demonstration)
Electrics are nice for aerial photography since they are quiet, clean, and you can fly them places you can't safely put up a gas powered bird. The only drawback is that you can only stay up for 5-10 minutes.
Some other people have already mentioned it, but the autopilot project would be great for this kind of stuff.
Anyone know where you can buy just the flexATX power supplys that these little guys run on? The ps in my SV24 died and now I've got it hooked up to a standard ATX supply until I can get a replacement.
(In case you're wondering, I can't RMA it because, well, I voided the warrenty by making some modifications. Modifications which would not have contributed to it failing of course, but warrenty voiding modifications no the less)
Even more important is that GPS doesn't work in cars either. Unless you've got a really big sunroof, or mount an external antenna like on my car.
So any attempt to get directions to some place while driving is going to be tough. Now not only will we have people holding cell phones to their ears while driving, but they'll be alternating holding them out the window as well.
Re:getting close to July 4th you know what that me
on
OSCAR 7 is Alive
·
· Score: 1
Don't worry. We'll be able to defeat the aliens, as long as they still use AppleTalk protocol on their servers so that 'ol Jeff can upload the virus from his powerbook.
Actually, it is. If anyone uses the tag any other web developer within a 50 mile radius is required by law to come over to their house and kick their ass.
I've been running WebTrends reports for the management types for about 2 years now, it's painfully slow, taking about an hour to generate the reports for our company intranet site.
Just recently I set up with with WebTrendsLive and I have to say it's a big improvement. It generates almost the same reports with the same pretty pictures and graphs, but makes them all up on the fly. Which means less work for me, woohoo!
I was using Cox here in Fairfax for about a year too. It started out great, but then slowly degraded to the point where it was useless. They started blocking port 80 and making it an all around pain in the ass to run my small server. So then I decided to switch to Verizon's DSL. That was a real treat which required changing our phone number, and about 3 months of waiting. Just so they could flip the switch to turn it at our house. (Our neighbor had already had it installed a couple months before, so it's not like they weren't already setup for DSL in our area)
Isn't the weight the major problem with space travel? You have to overcome the weight of an object to lift it up to orbit. And you have to work against the inertia, a product of it's mass, to get it up to orbital velocity so that it stays up there.
Without doing the math it seems to me that it would take much more energy to lift the object up there than it does just to accelerate it up orbital speeds.
also, you can make a compass [thinkquest.org] using a bowl of still water, a blade of grass, and a small sliver of ferrous metal. (like the hand of a watch)
Also, you can make a GPS system using only a few atomic clocks, several satellites in low earth orbit, and about eleventy billion dollars.
Slashdot Mirror
A good ghillie suit can break up your silhouette in visible light and IR.
It wouldn't mask you against an evenly heated background, but there's usually enough variation in your environment to make it hard for someone to spot you through an IR scope.
This page has some sample photos. (taken with a grain of salt since they are marketing their product, but still a fairly accurate demonstration)
You're suprised? They already demoonstrated they're inability to count when they jumped form 4.75 to 6.0.
5 lbs
5-10 minutes
You mean a camera like this?
and some sample pictures it took
Electrics are nice for aerial photography since they are quiet, clean, and you can fly them places you can't safely put up a gas powered bird. The only drawback is that you can only stay up for 5-10 minutes.
Some other people have already mentioned it, but the autopilot project would be great for this kind of stuff.
Anyone know where you can buy just the flexATX power supplys that these little guys run on? The ps in my SV24 died and now I've got it hooked up to a standard ATX supply until I can get a replacement.
(In case you're wondering, I can't RMA it because, well, I voided the warrenty by making some modifications. Modifications which would not have contributed to it failing of course, but warrenty voiding modifications no the less)
Even more important is that GPS doesn't work in cars either. Unless you've got a really big sunroof, or mount an external antenna like on my car.
So any attempt to get directions to some place while driving is going to be tough. Now not only will we have people holding cell phones to their ears while driving, but they'll be alternating holding them out the window as well.
Don't worry.
We'll be able to defeat the aliens, as long as they still use AppleTalk protocol on their servers so that 'ol Jeff can upload the virus from his powerbook.
And the objects the birds are dropping on the radar operators would be coconuts!
Of course 800mph is a reasonable airspeed velocity for an unladen swallow.
You mean to tell me you actually have 120GB of MP3s?
Thats over 30,000 songs averaging 4.3MB.
Nonsense, just look at how well the combination of radioactive spider and human, or velociraptor and frog DNA worked out.
Actually, it is.
If anyone uses the tag any other web developer within a 50 mile radius is required by law to come over to their house and kick their ass.
If it's on Slashdot it must be true.
Another fun excercise is looking at the physics behind Star Trek. Lawrence M. Krauss wrote a pretty good book on the subject.
Actually the name of the mission is "Cosmos 1", the solar sail craft itself isn't named yet.
http://www.planetary.org/solarsail/index2.html
Imagine that....people on Slashdot not getting the facts straight...
Russian subs are actually really good at navigating up around the arctic circle, good for putting stuff in polar orbits.
If you want to launch from the equator, this is the ship to use:
Or in this case, they can park the sub up around the arctic circle to put it in a polar orbit.
Stackable eh?
Perfect for a Beowu...oh nevermind.
I've been running WebTrends reports for the management types for about 2 years now, it's painfully slow, taking about an hour to generate the reports for our company intranet site. Just recently I set up with with WebTrendsLive and I have to say it's a big improvement. It generates almost the same reports with the same pretty pictures and graphs, but makes them all up on the fly. Which means less work for me, woohoo!
hands free mouse that covered by Slashdot some time ago.
They say that in the intro.
Maybe because not everyone is as paranoid as you.
I don't need to worry about people spying on me, because I'm pretty sure anyone who spent any amount of time doing that would die of boredom.
Not only do they have ground troops, but we need to defend ourselves from their navy!
I was using Cox here in Fairfax for about a year too. It started out great, but then slowly degraded to the point where it was useless. They started blocking port 80 and making it an all around pain in the ass to run my small server.
So then I decided to switch to Verizon's DSL. That was a real treat which required changing our phone number, and about 3 months of waiting. Just so they could flip the switch to turn it at our house. (Our neighbor had already had it installed a couple months before, so it's not like they weren't already setup for DSL in our area)
No.
When determining the air speed velocity of unladen cattle, you have to ask if they're African or European?
Who are you and where'd you get the coconuts?
If only we had a beowulf cluster of....nah thats just plain silly.
Isn't the weight the major problem with space travel?
You have to overcome the weight of an object to lift it up to orbit. And you have to work against the inertia, a product of it's mass, to get it up to orbital velocity so that it stays up there.
Without doing the math it seems to me that it would take much more energy to lift the object up there than it does just to accelerate it up orbital speeds.
also, you can make a compass [thinkquest.org] using a bowl of still water, a blade of grass, and a small sliver of ferrous metal. (like the hand of a watch)
Also, you can make a GPS system using only a few atomic clocks, several satellites in low earth orbit, and about eleventy billion dollars.