Is Dark Matter growing? The total mass of dark matter is fixed, so as the Universe expands and the volume increases, the density of dark matter drops, just like it does for normal matter. As space expands, the dark energy density remains constant, rather than decreasing or increasing. Does observation affect reality? Summary: One of […]
Why are carbon brushes used in AC generators?
Why are carbon brushes used in AC generators? A carbon brush is a sliding contact used to transmit electrical current from a static to a rotating part in a motor or generator, and, as regards DC machines, ensuring a spark-free commutation. Why brushes are used in motor? They can either be graphite or precious metal […]
Is there any energy loss in interference?
Which process is an example of chemical change?
Which process is an example of chemical change? A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. Is rust a chemical or physical […]
Who pays more Ascap or BMI?
What can you learn from cooking?
What can you learn from cooking? Here are nine simple lessons I’m learning and teaching by cooking with my children. Life is a challenge. It is hard and messy. Work together. Food matters. You have to have fun. There is magic in the mundane. Use all your senses. Be proud of yourself. There’s a world […]
How do you find the sum of forces?
Does higher electronegativity mean stronger bond?
Does higher electronegativity mean stronger bond? Generally, yes. A bigger difference in electronegativity indicates that the bond is more ionic. Since ionic bonds are known to have strong bonding characteristics, it makes sense that the more ionic a bond is, the stronger the bond. How does electronegativity affect melting point? As you must be knowing, […]
What is difference between imperial and metric?
What is difference between imperial and metric? In the Imperial Knowledgebase, all constants and measures are based on the imperial units. Whereas most countries use the metric system which includes measuring units of meters and grams, in the United States, the imperial system is used where things are measured in feet, inches, and pounds. Did […]