mandrin
New
On the website, +PLUS magazine ...living mathematics , maintained by John Baez, a mathematical physicist at the university of California, I found an interesting phrase, which reminded me of the difficulty for some on agreeing what it meant to swing left past impact.
'Ask two people facing each other to point "up"--they'll both point in the same direction.
Now ask them where "right" is.
They'll point in opposite directions. "
'Ask two people facing each other to point "up"--they'll both point in the same direction.
Now ask them where "right" is.
They'll point in opposite directions. "