How is echolocation used in technology?

How is echolocation used in technology? More sophisticated sonar systems can provide additional direction and range information. Whales, dolphins, and bats use echolocation, a natural type of sonar, in order to identify and locate their prey. These animals emit “clicks,” sounds that are reflected back when they hit an object. Who invented sonar technology? Reginald […]

Who can tell me if my pearls are real?

Who can tell me if my pearls are real? Both natural and cultured pearls have textured surface due to their layered nacre structure. So when you rub the pearls lightly against each other or on your front teeth, they feel a little gritty. Fake or imitation pearls, however, usually feel smooth or glassy. How much […]

What is a Mcdonalds burger made of?

What is a Mcdonalds burger made of? The beef patties are made with beef cuts such as the chuck, round, and sirloin. Inside the plant, the beef is ground, formed and frozen to maintain quality and flavor. It takes 400,000 pounds daily of 100% pure beef to make the McDonald’s burger patties. Where do Mcdonalds […]

How did the tsunami affect Japan?

How did the tsunami affect Japan? The aftermath of the 2011 Tōhoku earthquake and tsunami included both a humanitarian crisis and massive economic impacts. The tsunami created over 300,000 refugees in the Tōhoku region of Japan, and resulted in shortages of food, water, shelter, medicine and fuel for survivors. 15,900 deaths have been confirmed. Did […]

How do you identify a cobra?

How do you identify a cobra? A key to identifying them is the presence of a pair of large scales, known as occipitals, located at the back of the top of the head. These are behind the usual “nine-plate” arrangement typical of colubrids and elapids, and are unique to the king cobra. What does a […]

How do you cite an author more than 3?

How do you cite an author more than 3? Citing Works With Three or More Authors Include only the last name of the first author, followed by “et al.” and the year published in all narrative and parenthetical citations APA. Note: The reference entry should list the names of up to 20 authors. How should […]

How big is the ultimate field?

How big is the ultimate field? Ultimate is played on a field that is 37 m wide and 100 m long. The length is further broken down into two 18 m end zones and a 64 m playing field. Many players find the measurements easier to remember in yards: 110-40-20 – 110 yards long, 40 […]

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