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Comment: In other news: Are 4K displays worth getting yet? (Score 1) 204

by Maddog Batty (#47836023) Attached to: Dell Demos 5K Display

I was thinking about getting a Asus PB287Q 28" 4K 60Hz as it has good reviews but was unsure as to whether I can stick with icons and stuff being small. I love the idea of the additional pixels as I always seem to not have enough but I here some programs aren't a good match as they don't scale well.

Anybody use a 4K display for programming / development work? Good or bad idea?

+ - SpaceX Landing Video Making Progress

Submitted by Maddog Batty
Maddog Batty (112434) writes "The fine people at the Nasa Space Flight Forum are making good progress on restoring the corrupted landing video reported earlier. It worth looking at the original video to see how bad it was and then at the latest restored video. It is now possible to see the legs being deployed, the sea coming closer and a big flame ball as the rocket plume hits the water. An impressive improvement so far and it is still being actively worked on so further refinements are likely."

+ - SpaceX are looking for help with "Landing" video

Submitted by Maddog Batty
Maddog Batty (112434) writes "SpaceX recently made the news by managing to soft land at sea the first stage of rocket used to launch its third supply mission to the International Space Station. Telemetry reported that it was able to hover for eight seconds above the sea before running out of fuel and falling horizontal. Unfortunately, due to stormy weather at the time, their support ship wasn't able to get to the "landing" spot at the time and the first stage wasn't recovered and is likely now on the sea bed.

Video of the landing was produced and transmitted to an aeroplane but unfortunately it is rather corrupted. SpaceX have attempted to improve it but it isn't much better. They are now looking for help to improve it further."

Comment: Re:Reusable first stage? (Score 5, Informative) 97

by Maddog Batty (#44987747) Attached to: SpaceX Falcon 9 Blasts Off From California

Elon Musk @elonmusk

Rocket booster relit twice (supersonic retro & landing), but spun up due to aero torque, so fuel centrifuged & we flamed out

Elon Musk @elonmusk

Between this flight & Grasshopper tests, I think we now have all the pieces of the puzzle to bring the rocket back home.

+ - So You Want to Flap Your Arms and Fly?

Submitted by
Maddog Batty
Maddog Batty writes "Take the accelerometers and gyroscopes from an HTC phone and a Wii remote (http://www.humanbirdwings.net/about/haptic-wing-mechanism/) and connect to your battery powered flapping mechanism. Make the wings from your old kite and add ribs to give the correct profile. Attach to back, run down field, flap arms, take off and fly! (http://www.humanbirdwings.net/) Warning there is a bit of swearing at the end of the video (http://youtu.be/GYW5G2kbrKk). Note: this is battery powered flight not human powered but very cool nevertheless."

Comment: Re:No (Score 5, Informative) 502

by Maddog Batty (#39291529) Attached to: LED's Efficiency Exceeds 100%

No it isn't fiddling with numbers. You are missing the heat pump bit.

The device is taking X amount of energy from the electricity supply and X * 1.3 of energy as thermal and converting this to X * 2.3 as light. i.e. it is 230% efficient when comparing light output to electrical input. Equally, it is 100% efficient when comparing light output to electrical and heat energy input combined.

This does take a little bit of thinking to get your head around but I have a more common example in the shed outside. It contains a heat pump which is 350% efficient. It takes 2kW from the electricity supply and outputs 7kW of heat energy to heat my house. The missing 5kW comes from the pipes in the garden as heat energy. The result being that the garden is slowly being cooled. http://en.wikipedia.org/wiki/Heat_pump

COBOL is for morons. -- E.W. Dijkstra

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