https://padlet.com/jgong21/mdzozodbv4he For our technology findings en-us 2019-02-11 20:34:43 UTC 2023-04-05 10:19:12 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Thunder.png jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/330092834 We have done nothing so far]]> 2019-02-11 20:42:00 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/330092834 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/331909690 I chose this topic because I didn't really know what circuit breakers were. I have heard about them before but I didn't know what exactly they did and how they work. There are many different types of circuit protection, protecting your house from burning down. One of the simplest ones is the fuse. Fuses are simply a thin wire covered with a case. The wire is plugged into the circuit and disintegrates when it heats up above a certain level. This opens the circuit up and stops excess current from damaging other wires. The downside of this is that you need to get a new fuse if the old one is used up. A basic circuit breaker is a little more complex than a fuse and can be used more than once. Circuit breakers are simply a switch that opens a circuit when the current goes above safe levels. Basic circuit breakers have an electromagnet that pulls down a lever and shuts off the electricity when the current goes above safe levels. Some more advanced circuit breakers use explosive charges and more sensitive measurement tools to switch the lever.]]> 2019-02-15 20:43:22 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/331909690 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/334329162 When one of these metal levers switch, the circuit is opened and electricity stops flowing through the circuit.]]> 2019-02-22 20:24:33 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/334329162 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/338599975 Other side view]]> 2019-03-06 20:18:50 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/338599975 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/338599976 The bottom of the projector]]> 2019-03-06 20:18:50 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/338599976 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/338599977 This and the next few pictures are pictures of the projector that we will take apart. It is kinda bulky and seems old. It has never been taken apart before and it is a Hitachi projector. This is the front side.

]]> 2019-03-06 20:18:50 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/338599977 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/338599978 The top of the projector]]> 2019-03-06 20:18:50 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/338599978 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/338599979 Side view]]> 2019-03-06 20:18:50 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/338599979 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/338599980 Back side]]> 2019-03-06 20:18:50 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/338599980 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/340597277 We have a 13 year old Hitachi CP-X265 LCD Projector.  The MSRP (original price) for the projector was $2,995 and the projector is not being produced anymore. The projector is 7.2 pounds and the lamp life is 2,000 hours.]]> 2019-03-12 19:13:41 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/340597277 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/340609259 The projector in it's original box.]]> 2019-03-12 19:44:17 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/340609259 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/354256290 The lamp or projector bulb illuminates a LCD panel that projects an image. The LCD panel is a liquid crystal display that reflects light to create an image in color. The lamp produces a very bright light because an electric current is used to light the mercury vapor inside and produces a very bright light.]]> 2019-04-25 19:26:29 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/354256290 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/354257133 The lenses used in projectors are convex lenses. Convex lenses are curved outwards with a magnifier that is also curved. The video the projector is projecting, is upside down and the curved lens makes it inverted so it is right side up when we see it.]]> 2019-04-25 19:29:12 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/354257133 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/354261803 The mainboard of a projector is a computer board made of chips and electronics for controlling parts of the projector. The mainboard controls the fans that cool the bulb, drives the image engine and allows the user to control the projector externally.]]> 2019-04-25 19:43:08 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/354261803 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/355185236 The projector fan is controlled by the mainboard and cools various parts of the projector. It mainly cools the bulb and protects the projector from overheating.]]> 2019-04-29 19:28:39 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/355185236 jgong21 https://padlet.com/jgong21/mdzozodbv4he/wish/355948041 This is an air filter that filters dust and other things from going into the fan and projector. The air goes through the filter, then the 
inside spins and filters the air.]]> 2019-05-01 19:10:53 UTC https://padlet.com/jgong21/mdzozodbv4he/wish/355948041