The flat side of an egg has a larger surface area, which distributes the force of impact more evenly, making it easier to break the shell. On the other hand, the pointed edge concentrates the force in a smaller area, making it harder to crack the shell without breaking it into pieces.
Pressure is inversely related to the area on which force is applied. As the needle has pointed edge the pressure would increase and so it would be easier to go through the cloth for sewing purpose
A knife cuts through objects by applying force to a small area, creating enough pressure to break the bonds holding the object together. The sharp edge of the knife concentrates this force, making it easier to slice through materials.
Holding a door from its edge gives you more leverage because you are further away from the hinge, making it easier to push or pull the door open. This leverage allows you to use less force to move the door compared to holding it closer to the hinge.
To break glass without injuring yourself, wear gloves and eye protection. Tap the glass gently along the edge using a glass cutter or a tool with a sharp point to create a scored line. Apply pressure to the opposite side of the score line to break the glass cleanly.
A wedge is a simple machine because it consists of two inclined planes joined together to create a sharp edge. When force is applied to this edge, it can be used to exert a greater force over a smaller distance, making it easier to split or lift objects.
Hitting an egg on its flat side distributes the force over a larger area, reducing the pressure on any one point and making it easier for the shell to crack. On the other hand, hitting the pointed edge concentrates the force on a smaller area, making it harder to break the shell.
The pointed edge of a pickax is most often used to break up rocky surfaces or other hard surfaces such as concrete or hardened dried earth. The broad or chiseled edge is used for such things as cutting through roots.
Lancet
pointed, spreading, pebbled, even
Pressure is inversely related to the area on which force is applied. As the needle has pointed edge the pressure would increase and so it would be easier to go through the cloth for sewing purpose
Because the edge of the blade can slice through objects easier because it puts more force into one (thinner, more accurate) area, rather than a blunt one which would have the force spread over a larger area than the blade edge of a sharpened axe.
no
its cleavage
the continental shelf-edge or shelf-break
A blockage at the leading edge of the bit.
When the wood is about to break the fiber of the wood on the edge from where is about to break emerge from the center and you get to know that it is about to break.
2003