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Single-Action Army Handgun(1848)

This handgun is a single action revolver holding sixbullets. What made this invention important is that up

until this point, soldiers’ guns would only shoot one bulletat a time and required reloading after each shot which

was very time-consuming during the heat of battle.

Who invented this?

a. Albert Revolver

N 32° 00.000 W 097° 00.000

b. Samuel ColtN 32° 00.000 W 097° 00.000

c. Oliver WinchesterN 32° 00.000 W 097° 00.000

Telegraph(1837)

The telegraph was able to send messages long distancesusing wire and electric current. Telegraph operators sentmessages by interrupting the current with a series of longand short interruptions corresponding with letters of the

alphabet. A receiver on the other end would transfer these

current interruptions to a series of clicks which anotheroperator would decode to receive the message.

Who invented this?

d. John AndersonN 32° 00.000 W 097° 00.000

e. Thomas EdisonN 32° 00.000 W 097° 00.000

f. Samuel MorseN 32° 00.000 W 097° 00.000

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Self-Polishing Cast Steel Plow(1837)

The steel plow was invented to meet the needs of the pioneerfarmers trying to plow the rich, fertile soil of the Midwest. These

farmers had brought cast-iron plows with them from the Eastwhere the land was much more light and sandy. The

Midwestern soil would stick to the bottom of the plow, and

every few minutes the farmer would have to stop to scrape thesoil from the plow. After the steel plow was invented, it changedfarming tremendously because the soil did not stick to the plowmaking plowing much easier and faster. Farmers could work

much larger fields in the same amount of time.

Who invented this?

g. Henry HewittN 32° 00.000 W 097° 00.000

h. John DeereN 32° 00.000 W 097° 00.000

i. Thomas Jefferson

N 32° 00.000 W 097° 00.000

Cotton Gin(1794)

The cotton gin was a machine that separated cottonseeds from the cotton fibers which had previously been

done by hand. However, instead of making life easier, itallowed farmers to cultivate much larger plots of land

increasing the need for more workers, usually slaves, togrow and pick the cotton.

Who invented this?

  j. Eli WhitneyN 32° 00.000 W 097° 00.000

k. George Washington CarverN 32° 00.000 W 097° 00.000

l. Elijah Oliver

N 32° 00.000 W 097° 00.000

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Lightning Rod(1752)

Lightning rods provide a low-resistance path to the groundthat can be used if lightning strikes a structure.

Direct lightning strikes are always a fear as they cancause substantial damage to a building and could alsocause a fire.

Who invented this?

m. Horace Baker

N 32° 00.000 W 097° 00.000

n. Charles OliverN 32° 00.000 W 097° 00.000

o. Benjamin FranklinN 32° 00.000 W 097° 00.000

Mechanical Reaper(1831)

The mechanical reaper was a horse drawn farmimplement that could cut down wheat more quickly and

efficiently. Up until this time, farm workers had to cut downa crop by hand with scythes and sickles. Much morewheat could be grown and harvested and increased

productivity by ten times.

Who invented this?

p. Cyrus McCormick

N 32° 00.000 W 097° 00.000

q. Edward LenoxN 32° 00.000 W 097° 00.000

r. Peter BurnettN 32° 00.000 W 097° 00.000

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Airplane(1903)

On December 17th, 1803 near Kitty Hawk, NC, history wasmade with the first powered flight in a controlled aircraft

capable to fly by itself. This flight lasted 12 seconds andstretched 120 feet. These brothers’ historic flight markedthe beginning of the air age.

Who invented this?

s. Smothers Brothers

N 32° 00.000 W 097° 00.000

t. Wright BrothersN 32° 00.000 W 097° 00.000

u. Baldwin BrothersN 32° 00.000 W 097° 00.000

Incandescent Lightbulb(1879)

Although this person didn’t invent the incandescent lightbulb, he invented the first practical use of it. He bought thecopyright from the original inventors, and then improved on

the design to make a bulb last more than a couple ofminutes. Before this invention, the best source of lighting

was gas lights. They were dirty, got soot all over everything,as well as made the room hotter and uncomfortable. Gas

lights could cause fires, and the equipment had to becleaned almost every day.

Who invented this?

v. Thomas EdisonN 32° 00.000 W 097° 00.000

w. Benjamin FranklinN 32° 00.000 W 097° 00.000

x. George WestinghouseN 32° 00.000 W 097° 00.000