Why does Cardboard not fall even on removing the palm below it? The explanation is that air exerts force on the cardboard from below and this force is more than that exerted on the cardboard by the water. So the card is pushed up and does not fall. Will the paper towel inside the glass […]
Why did Tolkien write The Silmarillion?
Why did Tolkien write The Silmarillion? Tolkien first began working on the stories that would become The Silmarillion in 1914, intending them to become an English mythology that would explain the origins of English history and culture. He called his collection of nascent stories The Book of Lost Tales. What was Tolkien’s writing routine? During […]
What will happen to current if the voltage is doubled?
What will happen to current if the voltage is doubled? if you increase the voltage (or electrical pressure) in a circuit then the current (flow of electrons) will increase in direct proportion, eg if you double the voltage the current flow will double. What resistor do I need to drop 12V to 9V? To reduce […]
Did Green Bay change their colors?
Did Green Bay change their colors? Team switched to green and gold permanently in 1959. I would like to know what year the Packers changed their uniforms from Navy blue and tan to the current green and yellow (gold)? Since 1959, Vince Lombardi’s first season, the Packers have worn green and gold, or yellow as […]
What is the standard atmospheric pressure?
What is the standard atmospheric pressure? 101.325 kilopascals Can we feel atmospheric pressure? The reason we can’t feel it is that the air within our bodies (in our lungs and stomachs, for example) is exerting the same pressure outwards, so there’s no pressure difference and no need for us to exert any effort. What if […]
What is the most common source of energy for surface currents?
What is the most common source of energy for surface currents? the sun What is the most common source of energy? The world’s most used energy sources Oil – 39% Accounting for approximately 39% of the global energy consumption, oil has historically been the world’s most used energy source. Gas – 22% Gas consumption grew […]
Are all GREY cats rare?
How does a thermostat make use of thermal expansion?
How does a thermostat make use of thermal expansion? So how does a thermostat work? Most things get bigger when they heat up and smaller when they cool down (water is a notable exception: it expands when it heats up and when it freezes too). Mechanical thermostats use this idea (which is called thermal expansion) […]
What is ethics and its examples?
Who won the soccer war?
Who won the soccer war? El Salvador How many Gold Cups has El Salvador won? They have competed in the CONCACAF regional tournaments fourteen times, finishing as runners-up in 1963 and 1981. La Selecta also competes in the biennial UNCAF Nations Cup, the Pan American Games, the Olympics, and have won two gold medals in […]