What does hole in the donut mean?

What does hole in the donut mean?

The doughnut hole is the annual deductible for your plan — the uncovered costs that fall below a certain minimum. The doughnut itself is the medical expenses that your insurance company covers once you’ve met your deductible.

Why do donuts and bagels have holes in them?

Traditionally, bagels and donuts are dipped in something (boiling water for bagels and hot oil for donuts) and doing that makes the dough really airy with bigger holes. These only happen near the surface, though, so a hole increases that surface area and that airy delicious effect.

Does Straw have 1 or 2 holes?

For a surface with boundary, such as a straw with its two boundary circles, each cut must begin and end on a boundary. So, according to Riemann, because a straw can be cut only once — from end to end — it has exactly one hole.

Does a paper towel have 2 holes?

One Hole: The argument for the answer “one hole” is that a roll of paper towels (or toilet paper, straw, etc.) is that the object has one opening through the middle of it. That one opening is the one hole the object has. Two Holes: This explanation makes more sense with things like rolls of paper towels/toilet paper.

How many straws does a hole have?

The mathematically correct answer is 1 hole. A straw is topologically the product of a circle, which has 1 hole, and an interval, which has 0 holes. So the straw has 1 hole.

What is a hole in topology?

A hole in a mathematical object is a topological structure which prevents the object from being continuously shrunk to a point. Examples of holes are things like the “donut hole” in the center of the torus, a domain removed from a plane, and the portion missing from Euclidean space after cutting a knot out from it.

How many holes does a cylinder have?

It is a hollow cylinder with 2 openings at either end. However if we flattened it into a disc, there would only be one area that is completely “punched out”, which means one hole by this definition.