The cellphone was invented in 1973. The first call from a cellphone was made in New York City on April 3, 1973.Know More
The first cellphone was manufactured by Motorola. The phone was called the Motorola DynaTAC 8000x, which later became the first commercial cellphone sold to consumers in 1983.
Even though the first phone call was made from a cellphone in the 1970s, the electronic device didn't gain popularity until several decades later. The Nokia 3210, which was released in 1999, spearheaded the popularity of the cellphone. Since then, the phone has drastically changed, evolving from a device that can make phone calls to one that can process data and surf the Web.Learn more about Inventions
Dr. Ian Donald invented the first ultrasound machine in 1957 and tested it on patients a year later. The discovery was made in Glasgow, Scotland, and by the end of the 1950s ultrasounds became routine in Glasgow hospitals.Full Answer >
Eugene Schueller is credited as the inventor of the first permanent and commercial hair dye in the year 1907. Schueller called the dye Oreal, and his product would later grow into the company known today as L'Oreal.Full Answer >
Brahmagupta, a Hindu mathematician and astronomer, first used a dot underneath other numbers to represent the number zero in 628 A.D. He was the first to develop additive and subtractive operations that use zero.Full Answer >
The biggest inventions of 1994 were the CMOS image sensor and the first PlayStation games console. Other major inventions were the quantum cascade laser, the HIV protease inhibitor and the Segway.Full Answer >