The first electrically amplified stringed instrument to be marketed commercially was designed in 1931 by George Beauchamp, the general manager of the National Guitar Corporation, with Paul Barth, who was vice president. The maple body prototype for the one-piece cast aluminium “frying pan” was built by Harry Watson, factory superintendent of the National Guitar Corporation. George Beauchamp, along with Adolph Rickenbacker, invented the electromagnetic pickups. Coils that were wrapped around a magnet would create an electromagnetic field that amplified the vibrations of the guitar strings. Commercial production began in late summer of 1932 by the Ro-Pat-In Corporation (Electro-Patent-Instrument Company), in Los Angeles, a partnership of Beauchamp, Adolph Rickenbacker (originally Rickenbacher), and Paul Barth. In 1934, the company was renamed the Rickenbacker Electro Stringed Instrument Company. In that year Beauchamp applied for a United States patent for an Electrical Stringed Musical Instrument and the patent was later issued in 1937. By the time it was patented, other manufacturers were already making their own electric guitar designs.
A small child's intellectual capabilities begin to develop as soon it is born and by age 4 they have developed most of the basic capabilities they would require for their adulthood. The brain never stops growing though and keeps on assimilating and organizing the knowledge it had acquired. It is important to understand that color by number books and e-books are designed for kids, who have particular difficulties with learning and also attentiveness. Lots of adults have appreciated the advantages that these coloring pages offer. The key advantage of color by number books is that they actually turn the whole process of learning in to an exciting gameplay. Therefore your child will study maths basics whilst having a great time with various images. You might think that looking for SpongeBob Squarepants coloring pages is going to be something that will take you all afternoon, or all day depending on your particular point-of-view. However, you are going to find that there are websites out there that cater to this, and many other whims like this, that ca be found pretty easily with a few simple mouse clicks. If you have a few hours to kill to look for this stuff, that is pretty good. However, if you only have about an hour, or maybe less, you are going to be able to find what you are looking for relatively quickly when you are very specific about your search terms. Anyone that has very young children automatically knows that there really are not enough hours in the day to do what you really need to do, much less what you want to do that is recreational. The coloring page has many benefits. It's an activity, number one, that keeps the kids happily involved. Number two, it encourages the artistic side of your children and number three, encourages several developing skills, such as coordination, decision-making and follow through when they finish their coloring pages.