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Showing posts from May, 2021

what is cryptocurrency ?

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What Is Cryptocurrency? Here’s What You Should Know A cryptocurrency (or “crypto”) is a digital currency that can be used to buy goods and services, but uses an online ledger with strong cryptography to secure online transactions. Much of the interest in these unregulated currencies is to trade for profit, with speculators at times driving prices skyward. The most popular cryptocurrency, Bitcoin, has had volatile price moves this year, reaching nearly $65,000 in April before losing nearly half its value in May. (You can check the current price to buy Bitcoin here .) Here are seven things to ask about cryptocurrency, and what to watch out for. 1. What is cryptocurrency? Cryptocurrency is a form of payment that can be exchanged online for goods and services. Many companies have issued their own currencies, often called tokens, and these can be traded specifically for the good or service that the company provides. Think of them as you would arcade tokens or casino chips. Yo...

What is photography ?

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  What is Photography? What is photography? Why is it important? Let me synthesize why I love photography, how I define photography– and why photography is essential for society: To start, let us break down the etymology of the word: ‘photography’: Photo: Light Graphy: Drawing/writing Thus photography literally means: "Drawing with light." Photographs A photograph is literally a drawing made from light. Thus, if the origin of a picture is from reality (real light), it is a photograph. Camera What is a camera? A camera is basically a device which makes photographs. Originally, the word ‘ camera ‘ comes from the notion of a ‘camera obscura’ (a dark chamber)– because the first camera was a pinhole and a dark room. Originally the word ‘camera’ (in Latin) meant: “private bedchamber” — which comes from the Ancient Greek, ‘ kamara ‘, which was a vaulted chamber. Anyways, I think the practical way to think is this: A camera is a vault for light to enter– then the camera will produce...