What exactly is a number? A number is a mathematical object used to count, measure, and label. Numbers can be represented in language with number words. More universally, individual numbers can be represented by symbols, called numerals; for example, “5” is a numeral that represents the number five. Do numbers really end? The sequence of…
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Why is it hard to give up bad habits?
Why is it hard to give up bad habits? The brain releases dopamine when the reward pathway is activated, and because dopamine release feels very good, the brain and body start seeking more pleasure, more reward and more dopamine. As your mind continues to follow that neural pathway, your negative habit pattern becomes ingrained and…
What determines the horsepower of a car?
What determines the horsepower of a car? Behind the Numbers Engine horsepower is measured using a dynamometer, but what the dynamometer really does is measure the torque output of the engine, as well as the RPM – or “revolutions per minute”. These numbers are plugged into a formula (torque x RPM / 5,252) to determine…
Is Blue Nile a good place to buy engagement rings?
Is Blue Nile a good place to buy engagement rings? Blue Nile has an impeccable reputation. Consumers can rest assured that Blue Nile is the place to find any diamond jewelry. You will even see consumers buying stunning $50,000 engagement rings from Blue Nile. Blue Nile’s reputation as the leader in the online market has…
How does interest rate impact the economy?
How does interest rate impact the economy? The lower the interest rate, the more willing people are to borrow money to make big purchases, such as houses or cars. When consumers pay less in interest, this gives them more money to spend, which can create a ripple effect of increased spending throughout the economy. Does…
Are Li-ion batteries better than NiMH?
Are Li-ion batteries better than NiMH? NiMH batteries have been around since the early 1970s. The technology has been driven by its high-energy density (vs NiCd and Lead Acid), being environmentally friendly, good cycle life performance, and with having a good safety and reliability record….Key Design Features. Ni-MH Li-ion Efficiency (\%) 81 99 Do LiPo…
Does neem smoke kill mosquitoes?
Does neem smoke kill mosquitoes? Here are a few natural and harmless ways to get rid of mosquitoes in your house: * Neem oil acts as a great indoor mosquito-repellent owing to its smell that wards off mosquitoes. One can make an effective insecticide by mixing neem oil and coconut oil in equal proportion and…
How do planes make clouds?
How do planes make clouds? Planes create their mesmerizing contrails as they soar high in the thin, cold air. Water vapor quickly condenses around soot from the plane’s exhaust and freezes to form cirrus clouds, which can last for minutes or hours. What clouds are formed from airplanes? Contrails are a type of ice cloud,…
Does natural gas have condensate?
Does natural gas have condensate? Natural-gas condensate, also called natural gas liquids, is a low-density mixture of hydrocarbon liquids that are present as gaseous components in the raw natural gas produced from many natural gas fields. This gas can exist separate from the crude oil in the underground formation, or be dissolved in the crude…
Why is Uranus not a gas giant?
Why is Uranus not a gas giant? Uranus (left) and Neptune are classified as ice giant planets because their rocky, icy cores are proportionally larger than the amount of gas they contain. Beneath their relatively thin outer shells of hydrogen and helium, these planets’ mantles are largely made of compressed, slushy water and ammonia. Why…