How does a submarine sink?

How does a submarine sink? To sink, a submarine must weigh more than the water it displaces – this is called a negative buoyancy. So to get it to weigh more, special tanks are flooded with water. This makes the sub heavier and so down she goes. And when they want to go up, they […]

What heats the Gulf Stream?

What heats the Gulf Stream? What is the Gulf Stream? The Earth receives more heat from the Sun at the equator than at the poles. The Gulf Stream originates in the Gulf of Mexico where it picks up heat before it travels through the North Atlantic Ocean to the Norwegian Sea, where much of the […]

Why was Sigmund Freud exiled?

Why was Sigmund Freud exiled? In 1938, Freud left Austria to escape Nazi persecution. He died in exile in the United Kingdom in 1939. In founding psychoanalysis, Freud developed therapeutic techniques such as the use of free association and discovered transference, establishing its central role in the analytic process. What was the main cause of […]

What is adrenaline chemistry?

What is adrenaline chemistry? Epinephrine (also adrenaline, epi in medical jargon) is a hormone and acts as a neurotransmitter. Chemically, epinephrine is a catecholamine hormone, a sympathomimetic monoamine derived from the amino acids phenylalanine and tyrosine. The chemical formula of epinephrine is C9H13NO3. What is the chemical formula for adrenaline? C₉H₁₃NO₃ How does epinephrine work […]

Does US have a king?

Does US have a king? James I, the first Monarch of what is now the United States. George III, last Monarch of what is now the United States. This marked the official end of monarchy in the United States with George III of the United Kingdom being the last monarch. Does America have king or […]

What are the environmental impacts of fishery?

What are the environmental impacts of fishery? The water can become toxic, and it—along with antibiotics, pesticides, parasites, and feces—is spread to surrounding areas, contaminating our oceans. Wild fish populations can get sick and die when parasites and chemicals are spread to them from these farms through the water. How has climate change affect fisheries? […]

What thing can fly without wings?

What thing can fly without wings? They range from flying squirrels to flying lizards and frogs, and even snakes! Gliding ants—the only wingless insects known to actively direct their fall—were first observed last year outside Iquitos, Peru, by Yanoviak. How can a human fly without wings? Humans will never fly by flapping our arms with […]

How do they breed racehorses?

How do they breed racehorses? Racing Quarter horse mares can be artificially inseminated. Artificial Insemination: The first thing we have to do is collect the semen from the stallion. This process begins with cleaning the stud thoroughly to keep the process sanitary. Next, a mare in heat will be introduced to the horse, to excite […]

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