Which is better AC or DC current? DC power is significantly more energy efficient than AC power. DC motors and appliances have higher efficiency and power to size characteristics. DC-based lighting (LED) is as much as 75% more efficient than incandescent lighting. Is AC safer than DC? A.C. is said to be four to five […]
Is Atropia real?
Is Atropia real? You’ve never heard of Atropia? Well, it’s a fictitious country created by the U.S. Army. Like many real-world combat deployments, soldiers parachute out of the massive C-17 Globemaster into Atropia. What is Pineland? : land naturally dominated by pine forests. What is Atropia based on? The fictitious countries of Donovia and Atropia […]
What is a cycle in a Hertz?
What should you not use a carbon dioxide extinguisher on?
What should you not use a carbon dioxide extinguisher on? Unlike water and foam extinguishers, CO2 fire extinguishers do not work by cooling the fire and so are ineffective on fires involving flammable solids. Instead, CO2 extinguisher work by replacing the oxygen surrounding the flames with carbon dioxide, meaning the fire can no longer burn. […]
Why do we need to conserve energy?
Why do we need to conserve energy? First of all, reducing energy use limits the number of carbon emissions in the environment. In turn, conserving energy produces a higher quality of life. Reduced emissions result in cleaner air quality. In addition, it helps create a healthier planet, or at least helps sustain the resources we […]
Which two forms of heat transfer work together to heat the water in a plastic bottle that you are holding in your hands?
Which two forms of heat transfer work together to heat the water in a plastic bottle that you are holding in your hands? The primary form of heat transfer taking place within the water bottle will be convection, which is the natural circulation of fluid due to density differences arising from temperature differences. The second […]
What is an example of a mirage?
What is an example of a mirage? An example of a mirage is when you believe you see water or a ship in the desert when it isn’t really there. An optical phenomenon that creates the illusion of water, often with inverted reflections of distant objects, and results from distortion of light by alternate layers […]
What happens if the Earth spins backwards?
What happens if the Earth spins backwards? If Earth stopped rotating, it would be a disaster, but if it were to rotate backwards, it might not be as catastrophic. Trade winds at the equator, which normally blow westward, would reverse — hurricanes would no longer travel from east to west across the Atlantic. How long […]
Why is science and technology important?
Why is science and technology important? Technology, science and knowledge are important in modern contemporary society. Studies of technology and science provides students with insight into how different processes of knowledge are initiated and progressed, and how innovative technological processes are developed, employed and increase in importance. What is the advantages of technology? Advantages of […]
Do electric showers work without gas?
Do electric showers work without gas? You can use an electric shower regardless of the type of boiler or heating system you have, because it runs separately. Another great bonus of this is that you will still have access to hot water if your boiler breaks down. What showers are cheaper running? The electric shower […]