Recent content by karmicthreat
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Graduate Understanding Metastable Matter: How Can Compounds Form?
I understand that some atoms have somewhat stable states at states other than the ground state. What I don't understand is how are compounds able to be made with these metastable atoms? Wouldn't the energy released uppon forming the compound or the increased energy needed just immediately...- karmicthreat
- Thread
- Matter
- Replies: 2
- Forum: Atomic and Condensed Matter
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Build an Egg Transporter in Physics Class
A neat little contest. Another way you could do it is to just use a hanging weight since there is no height restriction. Just use that mass to power a couple wheels clamped together on the rope. The diagram is too low rez for me to see how much that weight in the diagram weighs, but you could...- karmicthreat
- Post #13
- Forum: Mechanical Engineering
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Switch 220V with a microprocessor
One relay on the hot side of the 220V line is sufficent. You will need a transistor to drive the relay though since I doubt the uP's port has enough current capacity to drive it.- karmicthreat
- Post #2
- Forum: Electrical Engineering
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Design details for a butter knife warmer
Man now I'm hooked on butter cutter technology. Instead of using a resistive circuit to heat the knife why not use a LC circuit resonating inductively with the metal in the blade to heat it. You would get nearly instant heat in the blade I'm not sure on the efficentcy though. This is the same...- karmicthreat
- Post #109
- Forum: Electrical Engineering