Why are periodic forest fires beneficial to the forest? When done in small doses, controlled burns can be beneficial to forest growth. Naturally, periodic forest fires help to clear away old brush and allow for new growth. They recycle nutrients back into the soil, disperse seeds of fire-adapted plants and burn ground cover to give […]
Why did Germany not invade Sweden?
Why did Germany not invade Sweden? Hitler did not invade Sweden because he did not want to waste valuable troops in Scandinavia when he had other concerns. The Swedes proved their neutrality by not letting Germany use Swedish airspace: when the Germans flew over Sweden to attack Norway, the Swedes fired back with anti-aircraft guns. […]
How long does it take for salt to dissolve in hot water?
Why is a 1982 D penny rare?
Why is a 1982 D penny rare? Newly found 1982-D Small date copper cent. The Mint switched over from striking copper-alloy to copper-plated zinc planchets sometime in mid-1982 as a cost saving measure – the copper-alloy planchets were too expensive to strike and the Mint was losing money. But it didn’t end there. What are […]
How many amps does starter motor draw?
How many amps does starter motor draw? 150 amps Why do motors draw more current when starting? An induction motor during start behaves like a short circuited transformer. Now, when supply is given to the stator windings, it draws high current at constant voltage as the windings are short circuited. This high current through the […]
What acetone Cannot dissolve?
What acetone Cannot dissolve? Many kinds of plastic do not dissolve in acetone. Polypropylene and nylon are unaffected, PTFE unsurprisingly handles it just fine as well. Two kinds of plastic that do dissolve in acetone are PVC and polystyrene. Why is nail polish soluble in acetone but not in water? Nail varnish does not dissolve […]
How do you deflect a question?
How do you deflect a question? 8 ways to deflect tough interview questions Acknowledge the question without answering it. Ignore the question completely. Question the question. Attack the question, Decline to answer. Give an incomplete answer. State or imply the question has already been answered. Defer to the will of others. How do you evade […]
What is the working principle of capacitor?
What is the working principle of capacitor? A capacitor works on the principle that the capacitance of a conductor increases appreciably when an earthed conductor is brought near it. Hence, a capacitor has two plates separated by a distance having equal and opposite charges. What is the main function of capacitor? A capacitor is an […]
What is near and far point of a normal eye?
How do you measure wind speed without an anemometer?
How do you measure wind speed without an anemometer? A much simpler way to measure wind speed is with a ribbon tied to a stick. Once calibrated, the device will allow the casual kite-flyer or sailor an indication of the wind speed. Place the three ribbons on top of each other and tie them together […]