"Two comments: On using metal covering over rapid prototype core.  That is a useful technique. I've used it as a way to make master plugs for an air intake assembly. We made carbon molds off the chromed plastic plugs then heat treated…"

"I use simple rules: 30% of material strength at 10g loading on all three axis Simple fast easy math good baseline. We have reduced weight (minimullay) by going to 30% at 6g;  however we developed fatigue cracks in certain areas. So there is no…"

"Well what can you do when one lunatic group picks a fight with another lunatic group? (Popcorn maybe) In this case I think both parties are wrong; and in need of some hefty fines. The use of remotely piloted air vehicles to gain access and film…"

"There is always cheating.                   Get a wireless charging pad. Hook the charging reciever to your power system. Hover over the charging pad. Wow look at the incredible endurance!!"

"Way back when I was involved in a Submarine race competition.  Our team used a device called the buddy phone from Ocean Technology Systems.  It was a two way radio used with scuba. I worked fine but we used up our air supply twice as fast.…"

"  Defiantly a cool project. Might be a little late to offer a suggestion on the airframe of your glider but here goes. How about using a model of Spaceship One. Skip the rocket motor and you have a glider designed for dropping from space…"

"Wow what a fantastic story from two sides, the Iranins and the CIA. Two groups that you can count on a fabricated story. Which one is lying? They both are. The CIA crashed a drone that's all they admit to. The Iranins say they captured the…"