01Dec 2022 by Caroline Hall
Types of Digital Money

Types of Digital Money

Technology
Whether you are looking for digital currency for your business or a form of currency to invest in, you are likely to come across some different types of digital currencies. They include virtual currency, central bank digital currency, and cryptocurrencies. Generally, these types of digital currencies are stored on digital computer systems and are then exchanged over the internet. History Despite its flaws, digital money has come a long way from the early days of electronic check writing. One of the first companies to pioneer the digital financial domain was PayPal. The company has been able to capitalize on the digital age by offering a full suite of online and mobile services to its clientele. The company has earned a stellar reputation for its technological expertise, as well as its…
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30Jul 2022 by Caroline Hall
The History of Refrigerators and Ice Cube Trays

The History of Refrigerators and Ice Cube Trays

Home Appliances, Power Equipment
Before the invention of modern refrigerators, people had to keep their refrigerators closed and rely on ice deliveries. Ice was used to preserve foodstuffs and they were sometimes called iceboxes. Before the 1920s, the ice delivery man would drop blocks of ice into the refrigerator. To keep the ice from melting, people had to keep the door shut. Today, refrigerators can use ice cube trays to keep food cold. Hydro-fluorocarbons Hydro-fluorocarbons (HFCs) in refrigerators and air conditioning units are highly toxic gases that contribute to global warming. EPA regulations will limit the use of HFCs in refrigerators and air conditioning units by 85 percent over the next 15 years. The new rule follows legislation passed by Congress last year. It will also restrict the imports of HFCs to the United…
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