Remember those carnivals growing up? Where you could go into those crazy bounce rides and do flips and twists for hours? Yeah, those times will never be the same, as one foul wind could send your and your family skyward. More »
If Only iOS Could Do Even Half of These Magical Things [Video]
With WWDC upon us, there's already been a lot of talk about what wonders iOS 5 will include. Suffice it to it will not include anything like the above features, which is kind of a shame. More »
Video: How to Install a Nitrous Oxide Kit
In this episode, Chris Duke of Motorz TV shows you how to install a nitrous oxide kit on a 2008 Ford Mustang GT (S197). This wet kit from Nitrous Express includes everything you'll need under the hood, including the switches, bottle, bottle heater, and even a remote bottle opener. Chris also exp
LED Project Help
Been diggin around and it seems there are several here that seem to know thier stuff, so I have a LED Voltage/Current question.
I've built an RC Boat and I am using 5 LED yard lights as q-beams on it. The yard lights were originally powered by 3 AA Ni-Mh under a solar cell charge. During temp const
Manually Selecting Which Network to Connect to Web in Multi-Network System
On my Windows 7 laptop I want to use two networks, one via Wifi, and one via Bluetooth. The local network (wifi) I connect to I use for printing, and has no internet access, where the bluetooth connection to my phone does. The problem is when both networks are connected at the same time, the laptop
ROV Thruster Design Questions
Hello,
I am a high school student, and the team capitan of a high school robotics group. We are building an underwater robot to compete in the MATE International ROV Competition, against other high school and also college teams. For our robot, we want to construct some better thrusters than those w
One-Man Mini-Rocket Has Shaky Second Launch [Rockets]
As the one-man Heat-1X rocket started to veer off course and outside the designated launch area, mission controllers cut the engine and ended the test flight well short of the 15-kilometer goal. Also, the parachute did not fully open. Success! More »
What Capacitor to be Used?
I'm using a gear-motor with the following specs:
3-phase, 200v to 220v, 0.2Kw (200 watt), 28 rpm, 50-60 Hz, Amp 1.1 to 1.2, continuous, 4 poles.
What should be the U.F and volt of the capacitor to be used with this motor?
current capacitor is of 12UF and continuous but the number of volt is not p
DIY Battery Packs with Multiple Taps – Charging.
6 Sealed 6V-4.5AH Lead-Calcium Batteries in series (think exit sign cells).
36V charger used to charge the array.
Batteries are used to test devices at 12V, 18V, 24V & 36V .
1. Assume that the testing was just 12V and two of the batteries were used without rotation. Can these two batteries lo
Non-Invasive True BP Measurement?
Anyone aware of a non-invasive method of obtaining true BP? Traditional methods (arm cuff) assume the artery is perfectly elastic, and therefore any hardening of the artery will give BP higher than true. And most of us will have some hardening.
Anodizing AA380
My anodizer tried to black anodize some die-cast AA380 for me and it turned out light grey. Now he says it can't be done and I'll have to strip the grey, repolish the aluminum and do something else. Is he correct? Or is there a technique to rescue this piece and get a black anodized finish?
The Ghosts of Saturn [Video]
Designer Chris Abbas collected a ton of Cassini photography from the Saturn mission and made this video. It is at times simultaneously eerie and awe-inspiring. This is not your father's NASA highlight reel. More »
Watch this F1 car hit a crazy fan in Japan [Blip]
Idea For Graduation Project
Hi I'm aya I'm communication engineering student 4th year at Al-balqa applied university in Jordan
i want to help me in idea of graduation project combining (hardware and software) and tell me about courses i must take to have experience
CR4 Admin - email address removed
From the CR4 Rules: Do no
The Craziest Low Pass Flyby I’ve Ever Seen [Video]
A Spanish pilot friend of mine sends me this stunning video of a low pass flyby in Argentina. I just can't believe the mad man who was flying this jet got it so close to the ground. More »
Take Note: MacDefender Malware Now Calls Itself Mac Shield [Blip]
New name, same headache. The MacDefender malware we've told you about in the past has morphed into a similarly fake anti-virus application that is still attempting to trick unsuspecting users into a download. Be wary, but don't panic. [MSNBC] More »
Your Baby Is Not Safe Until Its Butt Is Planted In Baby Bjorn’s New $300 Miracle Chair [Video]
Baby Bjorn has gone and done it. They've managed to create a baby high chair that's so full of itself and overpriced that I actually find myself hating something as innocent as a baby high chair this afternoon. More »
Hassell High-Speed Concept Train Serves Australian Luxury at Ludicrous Speed [Video]
With its double-decker design and posh interior perks, this concept train from Australian firm Hassell could one day zip the denizens of the land down under across the outskirts of their island continent at hundreds of miles per hour. More »
Apple Market Value Bests Intel and Microsoft Combined [Blip]
As the market closed on Friday, something pretty remarkable (but believable) happened: Apple's market value was more than Intel and Microsoft, combined. More »
Flowmeter
Hi
I have an application in which flow needs to be measured on 2"line.Following are the conditions
1)The Flowmeter needs to installed on an MEG injection line to Subsea.So there is a chance of back flow(oil and gas) from subsea .So the flowmeter needs to measure the backflow of both oil and gas fr