Dr. yoshiro nakamat's inventions

The Dr. Yoshiro Nakamats had invented more than 3200 inventions including the CD, the Dvd, the Taximeter...

The CD or compact disc is a discwere you can save information, videos, music, etc.
 A CD is just a piece of polycarbonate plastic 1.2 mm thick during manufacturing, this plastic is impressed with microscopic bumps arranged as a line extremely long spiral that will contain the data this spiral starts from the center to the edge once the polycarbonate is molded with these mounds a thin layer of reflective aluminum is applied on the disc covering the bumps and all the rest of the disc surface Then a thin acrylic layer is sprayed onto the aluminum to protect it. it was new because in the market there was nothing similar.

The Taximeteris a device made for know the cost of the trip on the taxi.
A taximeter is a device controled by microcontroles that are conected to the kilometer counter of the taxi that makes that when certain distance is passed the taximeter make the travel more expensive.it was new because no one know the real cost of a taxi trip.if you want to know more 

The dvd player is a way to reproduce dvd.
the data in the CD are on litlle bumps that have a code that only the the dvd can desifrate  light that read the data in the bumps that lightget back and the dvd player read the information in 0 and 1 the 0 arethe ones with out bumps and 1 are the bumps so the dvd player is able to read the code.

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