What did Pythagoras believe about the earth? An astronomical system positing that the Earth, Moon, Sun and planets revolve around an unseen “Central Fire” was developed in the 5th century BC and has been attributed to the Pythagorean philosopher Philolaus. Did Pythagoras go crazy? One of Pythagoras’ strangest obsessions with food was his relationship to […]
Is it possible to lose 20 kgs in 7 months?
How is projectile motion used in real life?
How is projectile motion used in real life? In real life, the projectile motion finds applications in sports. Playing basketball, football is examples of projectile motion in real life. While throwing a basketball into the basket, the player shoots the ball in such a way that the flight taken by the ball is in the […]
Is it good to Flex?
Is it good to Flex? It can also be a way to build strength. Muscle flexing is more accurately known as muscle contraction, because when you flex your muscles, you’re creating tension that’s temporarily making the muscle fibers smaller or contracted. This tension is one example of how flexing your muscles can help make them […]
How many Ptolemies were there?
How many Ptolemies were there? fifteen Ptolemaic Who ruled Egypt after the Romans? The Late Period of Ancient Egyptian history came to an end in 332 BC when Egypt was conquered by the Greeks. The Greeks formed their own dynasty called the Ptolemaic Dynasty that ruled for nearly 300 years until 30 BC. In 30 […]
What causes seeds to not germinate?
What causes seeds to not germinate? The primary reasons for failed germination are: Seeds get eaten – mice, voles, birds, and wireworms all eat seeds. Check to see that the seed is still in the soil. Seeds rot – planted too deeply, over-watered, or in cold weather, our untreated seeds may simply rot. What are […]
What are disadvantages of DC?
What are disadvantages of DC? Disadvantages of DC Transmission: Due to commutation problem, electric power can’t be produced at High (DC) Voltage. In High Voltage transmission, we cant step-up the level of DC Voltage (As Transformer won’t work on DC). There is a limitation of DC switches and circuit breakers (and they are costly too). […]
Can you boil water with a tealight candle?
What is the difference between emission and absorption spectrum?
What is the difference between emission and absorption spectrum? The main difference between emission and absorption spectra is that an emission spectrum has different coloured lines in the spectrum, whereas an absorption spectrum has dark-coloured lines in the spectrum. What is basic emission? Definition of Emission The basic electronic emission occurs when heat, sunlight, electron […]
What is the most heat conductive liquid?
What is the most heat conductive liquid? Water Why is heat transfer important for thermal fluid design? The key point behind heat transfer fluid technology is the ability to generate high temperatures at low system pressures. Heat transfer fluid technology offers safety, low maintenance, and extending operating lifetimes when compared to traditional technologies such as […]