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The history of scientific method considers changes in the methodology of scientific inquiry, not the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the primacy of ...
An electrode in which oxidation takes place is called an anode while in that which reduction takes place is called cathode. This applies for both electrolytic and electrochemical cells, though the charge on them reverses. The red cat and an ox mnemonics are useful to remember the same. Red cat: Reduction at cathode; An ox: Anode for oxidation. [28]
A microwave oven or simply microwave is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. [1] This induces polar molecules in the food to vibrate [ 2 ] and produce thermal energy in a process known as dielectric heating .
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After several successful experiments popping popcorn kernels and exploding a whole egg, Spencer built the first microwave oven, which was a rudimentary metal box with a magnetron inside, to heat ...
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In India, where children enter Class 4 at the ages 9 to 10 it is called Lower Primary, it is known as the fourth grade. 5-7 standard categories as Upper Primary (UP) . Lower Primary gives the basic education necessary for a kid and when they get to the UP section , advanced knowledge will be provided via lessons or modules .
The first stage of elementary school can last either 3 years (so called 1–3 programme for children starting at the age of 7) or 4 years (so called 1–4 programme for children starting at the age of 6). After of the first stage all pupils enter 5th grade, thus pupils that started at the age of 7 do not attend the 4th grade.