How many harmonics are there? There are two types of harmonics in waves, they are even harmonic and odd harmonics. For example, a cylinder with both sides open will vibrate at both even and odd harmonics, but a cylinder with one closed side will vibrate at only odd harmonics. What is the difference between fundamental […]
Which is better AC or DC current?
Which is better AC or DC current? DC power is significantly more energy efficient than AC power. DC motors and appliances have higher efficiency and power to size characteristics. DC-based lighting (LED) is as much as 75% more efficient than incandescent lighting. Is AC safer than DC? A.C. is said to be four to five […]
Why is streak more reliable for mineral identification?
Why is streak more reliable for mineral identification? Streak is the color of a mineral’s powder. Streak is a more reliable property than color because streak does not vary. Minerals that are the same color may have a different colored streak. To check streak, scrape the mineral across an unglazed porcelain plate (Figure 5). Why […]
Why do we need to conserve energy?
Why do we need to conserve energy? First of all, reducing energy use limits the number of carbon emissions in the environment. In turn, conserving energy produces a higher quality of life. Reduced emissions result in cleaner air quality. In addition, it helps create a healthier planet, or at least helps sustain the resources we […]
Do dreams really mean anything Psychology Today?
Do dreams really mean anything Psychology Today? The theory states that dreams don’t actually mean anything. Instead they’re merely electrical brain impulses that pull random thoughts and imagery from our memories. However, renowned psychologist Sigmund Freud thought otherwise. He believed that dreams revealed unconsciously repressed conflicts or wishes. Are your dreams telling you something? Dreams […]
What is an example of a mirage?
What is an example of a mirage? An example of a mirage is when you believe you see water or a ship in the desert when it isn’t really there. An optical phenomenon that creates the illusion of water, often with inverted reflections of distant objects, and results from distortion of light by alternate layers […]
What type of evidence is a shoe print?
What type of evidence is a shoe print? Footwear evidence can be found in two forms, impressions and prints. The impression is normally described as a three-dimensional impression, such as an impression in mud or a soft material; and the print is described as a print made on a solid surface by dust, powder, or […]
What is the best product to absorb liquid?
What is the best product to absorb liquid? Incredible Minerals Today Floor-Dry: Absorbs more liquid than any other mineral on the market today. M.A.X.-Dri: Premium calcined clay absorbent. Optisorb: Industrial grade absorbent. Safe T Sorb: the #1 Safety Application Absorbent. Solid-a-Sorb: The #1 Janitorial Absorbent. Thrifty-Sorb: The #1 Automotive Absorbent. What absorbs liquid the best? […]
Is it harder to draw or paint?
Is it harder to draw or paint? Many people consider painting to be more difficult than drawing because most artists learn to draw first. You start out drawing, which makes it seem only natural that painting is a more advanced technique. If most artists started out painting first, then the general consensus would probably be […]
What type of alcohol is there?
What type of alcohol is there? The Different Types of Alcohol Fermented Beverages: Distilled Beverages: Beer. Wine. Liquor. Liqueurs. Cocktail Bitters. Alcopops (RTDs – Ready to Drink) What is the most popular alcoholic drink? 21 Classic Drinks to Order at a Bar Old Fashioned. Getty Images. There may be no better test of a bartender’s […]