How convection works in the sun? Convection in the Sun Hot plasma rises from the core towards the surface, where it cools and sinks back towards the core. This process forms convection cells that we see as solar granules. The lighter color in the granules is the sun’s hot plasma that has risen to the […]
What did Toyota say about Tesla?
What did Toyota say about Tesla? Toyoda, whose grandfather founded the legendary Japanese automaker, said Tesla is like a chef with a recipe. “They have not created a real business yet or a real world yet,” he said. Can Tesla overtake Toyota? Tesla overtakes Toyota as the world’s most valuable automaker. Shares of Tesla, which […]
How long does a protoplanetary disk last?
How long does a protoplanetary disk last? few million years Why was the protoplanetary nebula flat? Why was the protoplanetary nebula flat? Nebulae form in a variety of shapes, and ours happened to be disk-shaped. The nebula became flat due to gravitational contraction along its axis. It flattened as a result of collisions between particles […]
What Cannot be determined from the fossil record?
What Cannot be determined from the fossil record? The fossil record cannot accurately determine when one species becomes another species. However, two hypotheses regarding speciation also exist. Phyletic speciation suggests that abrupt mutations in a few regulatory genes occur after a species has existed for a long period of time. What 4 things do Fossil […]
What can be used instead of Nichrome wire?
What can be used instead of Nichrome wire? Nichrome is good, steel or stainless steel should also work ok and may be preferred if you need less heat and more strength. Does Nichrome wire heat up? Nichrome is resistant to heat and corrosion in water, and when heated, it forms a thin layer of chromium […]
Why are lawns bad for the environment?
Why are lawns bad for the environment? Every year across the country, lawns consume nearly 3 trillion gallons of water a year, 200 million gallons of gas (for all that mowing), and 70 million pounds of pesticides. In fact, these lawns can do substantial harm to the environment and to both vertebrates and insects. What […]
Why does a plastic rod becomes negatively charged?
Why does a plastic rod becomes negatively charged? When a polythene rod is rubbed with a duster, the friction causes electrons to gain energy. Electrons gain enough energy to leave the atom and ‘rub off’ onto the polythene rod. The polythene rod has gained electrons, giving it a negative charge. What is difference between ground […]
How much of a radioactive actinium in grams will be left after 18 hours if the half-life is 6 hours and you start with 384 grams?
Can I go through a red light for an ambulance?
Can I go through a red light for an ambulance? Advice online says you should not break the law to make way for police, fire and ambulance vehicles – this includes entering bus lanes or running red lights. Do not try to speed or outrun an emergency vehicle, only allow the emergency vehicle to overtake […]