Erasto Empemba was a schoolboy in Tanzania in 1963.While making ice cream with his friends, he noticed that hot milk freezes faster than cold milk. Hence the name Empemba effect.But this effect has been observed since the time of Aristotle. But chemists have struggled to give an accurate scientific explanation.There is a reason for that.Warm…
Seems very stupid QN doesn’t it.Likewise,Why water is used to extinguish fire. Why not use water in some conditions?I want to give a very simple answer to the questions. Water is a compound of hydrogen and oxygen. Hydrogen is a flammable element.So is Oxygen.But oxygen is said to be an oxidizing agent.So why doesn’t water…
Known as SKA, the original name of this radio telescope is the Square Kilometer Array. Its construction work is expected to be completed by 2028. The SKA is based at the University of Manchester’s Jodrell Bank Observatory in Cheshire, England. One of SKA’s great quests is to trace the entire history of hydrogen, the most…
Hydrogen was everywhere at the beginning of the universe, ??.??% of all matter. Call it God or the Creator because everything came from it. ??% of the current universe is hydrogen. ??% helium and the remaining two percent is everything else. A central concept in science fiction novels is the collection and fueling of hydrogen…
Our body is made up of four main elements. The four elements are oxygen, carbon, hydrogen and nitrogen. So, let’s see exactly what these components do. That is, 65% to 67% of the human body’s oxygen is in the first place, because most of our body is water – about 50% to 60% – so…
This is Planet WASP 127B! It is a distant gas giant located about 525 light-years from Earth. WASP-127b is like any other giant planet: it is mostly made up of hydrogen and helium. What to do when the gases are hot? They are evolving. Like a hot air balloon, the WASP-127b became the softest known…
The spin of an electron is 1/2. The spin is 1/2 for the proton. A hydrogen atom consists of a proton and an electron. Then there are two possibilities for total spin. One or both can be in the same direction. Then you get 1 total spin. Or in the opposite direction. Then we get…
The first elements to form at the beginning of the universe were 92% hydrogen and 8% helium, with the exception of a very small amount of lithium. The remaining elements were formed by stellar nucleosynthesis. That is, by the fusion of the stellar core, or by the heat of an explosion at the star’s death….
In a three-phase process in which four hydrogen atoms combine to form a helium nucleus, the Sun converts about 600 million metric tons of hydrogen per second to 596 million metric tons of helium. Then that depleted four million metric tons (or 4.26 more precisely) is converted into energy every second. Only 0.00002 percent of…
You put some zinc into the hydrochloric acid in a test tube. The formation of hydrogen gas can be seen. That’s the chemistry you know. Zn + HCl → ZnCl2 + H2 In 1766, Henry Cavendish identified this element and named it hydrogen, which means water. The question of whether hydrogen began cooking in the…
