Comparing Fly Bee Wasp Wing Beats Per Second 1930s Ad Trade Card

Description

Comparing Fly Bee Wasp Wing Beats Per Second 1930s Ad Trade Card
NOTE:
THESE ARE NOT POSTCARDS
THEY ARE TRADE/ADVERTISING CARDS.
THEY ARE MUCH SMALLER THAN A STANDARD POSTCARD
AND
THERE IS ADVERTISING TEXT ON THE BACK!
THE CARD DIMENSIONS ARE APPROXIMATELY
2 5/8 '' x 1 3/8 ''  or  6.5 cm. x 3.5 cm.
ORIGINAL 1930s TRADE - ADVERTISING CARD
WING BEATS
In order to attain their speed of from
6 to 10 miles an hour, the common
house fly, the worker bee and the
wasp beat their wings 330, 190 and
190 times per second respectively.
The fly is approximately 1/280th of a
mans height. Allowing for the
insects light construction, 1/200th
would be nearer. To fly by his own
strength man would, therefore, have
to beat a pair of wings about 60,000
times per second.
THE REVERSE SIDE HAS TEXT ABOUT THE IMAGE ON THE FRONT SIDE
SEE IMAGES ABOVE
THE CARD DIMENSIONS ARE APPROXIMATELY
2 5/8 '' x 1 3/8 ''  or  6.5 cm. x 3.5 cm.
NOTE:
THE IMAGE ABOVE IS LARGER THAN THE CARD
TO SHOW THE DETAIL.
THIS CARD IS  NOT A MODERN REPRODUCTION
IT IS NOT PERFECT
THERE MAY BE:
SLIGHT PAPER LOSS - SMUDGING - ROUNDED CORNERS - WEAK CORNERS
SEE THE IMAGES ABOVE!
164
WE COMBINE SHIPPING
BUY 1 TO 4 TRADE ADVERTISING CARDS AND THE TOTAL TO SHIP IS
BUY 5 TRADE ADVERTISING CARDS AND SHIPPING IS FREE
NOTE:
ON LARGER INTERNATIONAL ORDERS WE MAY REQUIRE REGISTERD
MAIL AND WILL SPLIT THE COST WITH THE BUYER.
INQUIRE IF CONCERNED!