You have a set of calipers that can measure thicknesses of a few inches with an uncertainty of ±0.005 inches. You measure the thickness of a deck of 52 cards and get 0.535
inches:
If you now calculate the thickness of 1 card, what is your answer, including its
uncertainty?
You can improve this result by measuring several decks together. If you want to
know the thickness of 1 card with an uncertainty of only 0.00002 in., how many
decks do you need to measure together?

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.

3. dark matter

empty space could also be a simple vacuum