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Nylon was first produced in USA.
Oximeter is usually used to monitor patient's pulse, Nonin Medical was the first company in the world to present and produce the bluetooth oximeter which is attached to a patient's finger and then his pulse can be monitored wireless from distance.
They produce oxygen gas during the light reactions.
Today's mobile phone is significantly smaller, more powerful, and multifunctional compared to the first mobile phone. The first mobile phone was much bigger, heavier, and had limited calling capabilities. Additionally, today's phones have access to various apps, high-quality cameras, and internet connectivity which the first mobile phone lacked.
Latitude and longitude came first. A very long time before such things as satellites, computers and smart phones ever existed.