perceptual adaptation
They can be found at Spinzers.
Plants growing upside down........
When their swimming upside down its usually a sign that their dying
Can you be more specific as to who does this?If you mean glasses already on the table when you are seated in restaurants, having them upside down keeps dust from falling into the glass and allows them to drain if they weren't QUITE dry when placed there.
It was actually an upside down pink triangle, which is where the modern-day symbol came from.
The word "NOON" is an example of an image that reads the same right side up and upside down.
This could be called optical illusions.
set glass up right,not upside down to dry,this should correct the problem.
the value depends on the style of glasses you have, the most common glasses with the yellow leaping fawn sell for 50p to £1 each, if they are in the original box they can go up to £20 to £25 for 6. The ones withe white standing fawn fetch a little more as do the etched cocktail shape. 5 glasses with the white fawn and an upside down finial" shaped stem recently fetched over £500 on eBay your best bet is to look at the completed listings on eBay and compare with the glasses you have.
You have described body plan of a medusa...... and a jellyfish is a good example of a medusa.
Just turn it upside down as for example 3/4 reciprocal is 4/3
Search google for "upside down text" and then you'll find websites where you can turn letters around!