because of the hotair vapour
To provide humidity lost via the hot bright lights.
Extreamly dumb question but hear's your answer. It's called advertising, They sometimes add extra objects into the displays to attract more attention or to give the display it's own meaning. think of summer clothes on a dummy; how would you know it's summer clothes being advertised? it's wearing glasses to show you it's what it is if you get what i mean.
They don't, unless the item(s) on display need mild protection from drying out. The water evaporates, keeping the air in the case from becoming too dry. This dry air would in turn dry out the item(s) on display, damaging them.
Extreamly dumb question but hear's your answer. It's called advertising, They sometimes add extra objects into the displays to attract more attention or to give the display it's own meaning. think of summer clothes on a dummy; how would you know it's summer clothes being advertised? it's wearing glasses to show you it's what it is if you get what i mean.
inside the garbage
Inside of the eyeglasses is closer to the skin, so the grease from the skin, especially on the cheeks can smear on the glasses. Also, people have the tendency to touch their glasses with bare hands, lift them up, adjust their position and so forth. Usually this is done by touching the glass rim with your thumb. If done without focus, the thumb usually slips to touch the glass inside.
Window display is the display that is placed in the window of the store. An interior display is inside the store.
Nothing is inside the Coca Cola bottle from the Netherlands
The Museum of Science and Industry in Chicago currently has 3 feature exhibits which are Science Storms, Animal Inside Out, and The Art of the Bicycle. They currently have 21 other exhibits and the full list of what that encompasses can be found on the official website.
The writing on the inside of the frame tells where it is made and by what company. If you get glasses from on Dr. it's probably the best to get the contacts from the same person.
Metal frame
Since the curvature of the inside and outside of the glasses are the same, the magnifying powers exactly cancel out.