A friend has just given me a beautiful 1960-ish optical pyrometer. It is a Pyro Optical Pyrometer, made by The Pyrometer Instrument Co. with serial number 14081. Cannot find model or type.
Now. To the questions.
Does anyone know how this thing works? The physics I understand slightly, as...
The local guys gave basic concrete instruction but said to consort an engineer. The engineers want to charge $300-$500 minimum for any help. I have asked several other people in construction but none of them have dealt much with cantilevers. Construction is pretty basic around here. If someone...
Hello all, I am a physics major working on my mechanical eng. minor. This is not homework. This is a real design.
I have been asked by an engineering friend to help on a cantilever design which he is going to build on his riverside home. I have some structural design under my belt but have...
Also quoting this website: http://www.sciam.com/askexpert_question.cfm?articleID=00042194-68C4-1C71-9EB7809EC588F2D7
"You will do less damage to your car and yourself by hitting a fixed object. The reason is that the damage done is a function of the relative velocity of the objects. If you are...
okay bringing up an old topic but
a car (lets just say 2000 kg) drives into a concrete wall (essentially immovable) at 40 km/h.
the same vehicle (make and model not the product of the colliision!) drives head on into another identical vehicle traveling in the opposite direction; both at 40...
These are also good sites for homemade crystal radios:
http://www.scitoys.com/scitoys/scitoys/radio/radio.html
http://home.houston.rr.com/molerat/foxhole.htm
One of my more favorite projects that I have done is the glowing pickle. It is fairly simple to construct and is very interesting. The project consists of two test tube racks (or something to suspend the pickle in the air), an apparatus for applying 110 volts AC (I just used a standard dimmer...
Where do I start in astronomy?
I was introduced to astrology just a while ago but i don't know too much about it. I just got a telescope and I am a beginner when it comes to astrology. I love to observe the stars and the heavens but I don't really know too much about them. I don't know really...
Does anyone know how to calculate the vertical thrust of 1.5 horsepower motor? I need some calculations for a project hovercraft and am wondering how much thrust is needed to lift 200 lbs. Also is thrust affected by fan blade size? Any help is appreciated, Thanks!