We may yawn sometimes, and at that time you may think that our body gets tired and it needs more amount of oxygen. But it’s not a real reason. Also if you see a person who is yawning then automatically we tend to yawn. Do you know the reason behind this? Let’s get into this….
We have studied in childhood that if we plant a tree it will bring rainfall and it increase the ground water level. Do you know how it actually does? Let’s get to this. Trees are a source of oxygen which is essential for all living organisms to live on the earth. Such trees also help…
Grinding machines : A grinding machine is a power-operated machine tool where the workpiece is fed against a constantly rotating abrasive wheel to remove the thin layer of material from work. Grinding Wheel : • A grinding wheel is a multi-tooth cutter made up of many hard particles known as abrasives which have been crushed …
Whenever we drink soft drinks or while eating chocolates we might feel tooth sensitivity. Do you know osmosis is the only reason for this tooth sensitivity? How to get rid of tooth sensitivity ? Let’s get into this. Usually, our tooth contains three major parts : Outer part – Enamel which consists of minerals and…