Eyes that glow in the pitch-black night make for many a scary tale. But why do some animals’ eyes glow at night? “A lot of the animals we see, especially the ones that go out at night, have a special, reflective surface right behind their retinas,” says Dr. Cynthia Powell, a veterinary ophthalmologist at Colorado… Continue reading Why Do Animals’ Eyes Glow In The Dark?
The shortest month of the year seems to have gone by in a flash. Why does February have only 28 days? It’s the Romans’ fault. Our modern calendar is loosely based on their old, confusing one. Though records on the Roman calendar are sparse and sketchy, legend has it thatRomulus, the first king of Rome,… Continue reading Why there are 28 days in February?
We know that oxygen require for fire.Now the question is that if there is spark anywhere in atmosphere why oxygen not catching fire? Let answer it. A fire requires three things: oxygen, fuel and heat.There is heat supply by spark, oxygen also present but there is no fuel so there is no FIRE. Fire extinguisher… Continue reading Why atmospheric Oxygen not catching fire when anywhere spark there?