They could have just said "5 times as much" to save us the bother of doing the calculation ... which needs a tiny bit of care because of the dual units.
The calculation involves dividing 5 by 1; most people should be able to handle it.
Note that they've correctly not bothered with providing equivalent quantities in each unit - 5 kilograms is 11 pounds, not 10 pounds. This doesn't matter, because the ratio 10 to 2 is equal to the ratio 5 to 1.
But it does raise the question of why they provide pounds at all, and if they're going to, why not just say "for every pound (or kilogram) of matter, there are roughly 5 pounds (or kilograms) of dark matter".
incompatible|2 years ago
thaumasiotes|2 years ago
Note that they've correctly not bothered with providing equivalent quantities in each unit - 5 kilograms is 11 pounds, not 10 pounds. This doesn't matter, because the ratio 10 to 2 is equal to the ratio 5 to 1.
But it does raise the question of why they provide pounds at all, and if they're going to, why not just say "for every pound (or kilogram) of matter, there are roughly 5 pounds (or kilograms) of dark matter".
projektfu|2 years ago
whoopsie|2 years ago
mc32|2 years ago