Wearable Electronics

Wearable Electronics — page 3
EMERGING TeCh The Amazing Ring of the 17th Century Can you believe that a wearable calculator was invented nearly 500 years ago The abacus was a counting tool used in China A full-size abacus featured nine beads on each of 10 wires strung between two boards It allowed people to figure out complex math equations This device was made much more convenient early in China’s Qing Dynasty a period that began in 1644 One clever designer created an abacus ring that could fit on a finger It featured beads so small they had to be moved with tiny tools such as a pin The abacus ring had just seven wires with seven beads on each The invention of the transistor led to the creation of tiny hearing aids in the 1950s They could be worn behind the ears Advancements in the 1970s further shrunk the devices and brought greater clarity Digital hearing aids invented in the 1990s were placed inside the ear and were nearly invisible to others Hearing aids are not the only wearable electronics to boast a long history The first watches were created centuries earlier The earliest of these timepieces was invented by German clockmaker Peter Henlein in the early 1500s The invention of digital wristwatches would have to wait for centuries The first of these devices was invented in 1972 and sold for more than 2,000 6