Who gave the first evidence of Big Bang Theory? Georges Lemaître Where did Big Bang come from? Etymology. English astronomer Fred Hoyle is credited with coining the term “Big Bang” during a talk for a March 1949 BBC Radio broadcast, saying: “These theories were based on the hypothesis that all the matter in the universe […]
What is an electromagnet give its characteristics?
What is an electromagnet give its characteristics? An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. The poles of an electromagnet can even be reversed by reversing the flow of electricity. […]
How many lunar eclipses will there be in 2020?
Why is ethics important in the practice of clinical psychology?
Why is ethics important in the practice of clinical psychology? Ethics refers to the correct rules of conduct necessary when carrying out research. We have a moral responsibility to protect research participants from harm. The purpose of these codes of conduct is to protect research participants, the reputation of psychology, and psychologists themselves. What are […]
Is SF6 bad for the environment?
Is SF6 bad for the environment? It is a potent greenhouse gas with a high global warming potential, and its concentration in the earth atmosphere is rapidly increasing. During its working cycle, SF6 decomposes under electrical stress, forming toxic byproducts that are a health threat for working personnel in the event of exposure. Is SF6 […]
How can we reduce harmonics in power system?
How can we reduce harmonics in power system? To attentuate harmonics, users can use passive filters, inductive reactors, phase-shifting transformers, active filters, or multi-pulse converter sections. Passive filters apply tuned series L-C circuits (circuits with inductance and capacitance) that attentuate specific harmonic frequencies. How much current total harmonic distortion is acceptable? increased temperatures and interference […]
Can two waves with different frequencies interfere?
Can two waves with different frequencies interfere? 2 Answers. No; wave interference takes place whenever two waves of any frequency, same, nearly the same or widely different interact. An air molecule next to your ear, for example, can only respond to the sum of all the different sound waves reaching it at any moment. What […]
What are the common group of minerals?
What are the common group of minerals? Silicates, oxides, sulfates, sulfides, carbonates, native elements, and halides are all major mineral groups. Silicates. Oxides. Sulfates. Sulfides. Carbonates. Native Elements. Halides. What are the two main groups of minerals? All minerals, however, can be classified into two main groups—silicate minerals and nonsilicate minerals—based on the chemical compositions […]
How can I minimize my carbon footprint?
How can I minimize my carbon footprint? 7 Instant Ways To Reduce Your Carbon Footprint Stop Eating (or Eat Less) Meat. The single most effective action you can take to combat climate change is to stop eating meat. Unplug Your Devices. Drive Less. Don’t Buy “Fast Fashion” Plant a Garden. Eat Local (and Organic) Line-Dry […]
Why does sugar melt and not burn?
Why does sugar melt and not burn? Hypothetically, if wood and sugar were assumed to have an identical chemical composition and supplied the exact same amount of heat energy, then any difference in the reaction would need to be derived from the amount of oxygen. A lack of oxygen is why sugar does not readily […]