Science and Technology

What exactly is Cryptocurrency?

What is Cryptocurrency? A cryptocurrency or a digital or virtual currency that is secured by cryptography, which makes it almost impossible to counterfeit and double spend. Most of the cryptocurrencies decentralized networks based on a technology known as blockchain technology. You may be familiar with the most popular versions, Bitcoin and Ethereum, but there are …

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What is Oximeter ? How does it work ?

What is Oximeter ? Today (during Covid-19 Pandemic) Pulse Oximeter is a common term. It is an essential medical instrument like thermometer or sphignomanometer (blood pressure measuring instrument). It is a non-invasive diagonastic device to measure Oxygen saturation in patient’s arterial blood (SpO2) . It is fixed on the finger tip or earlobe. Who invented …

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