18.2 Exploration and 18.2 Exploration and TravelTravel
CompassCompass Early Chinese compasses were Early Chinese compasses were
made of a rock called lodestone, made of a rock called lodestone, which, when floating, points which, when floating, points
north-south.north-south.
The Chinese eventually replaced The Chinese eventually replaced it with a steel needleit with a steel needle
Lodestone Lodestone CompassCompass
Compasses still help travelers Compasses still help travelers navigate.navigate.
18.2 Exploration and 18.2 Exploration and Travel Travel
Canal LockCanal LockThe canal lock allowed boats to The canal lock allowed boats to
pass from one level to another in pass from one level to another in a canal.a canal.
Passing the locks Passing the locks at the Grand Canalat the Grand Canal
Canal locks are still used on Canal locks are still used on modern canals, like the Panama modern canals, like the Panama
CanalCanal
18.3 Industry18.3 Industry
Movable Type Movable Type Movable type uses separate Movable type uses separate
block for each character.block for each character.
Printers made characters out of Printers made characters out of clay, baked them, and then clay, baked them, and then
placed them in an iron frame.placed them in an iron frame.
Early Chinese Early Chinese moveable blocksmoveable blocks
Until recently, all newspapers, Until recently, all newspapers, books, and magazines were books, and magazines were printed using movable type.printed using movable type.
18.3 Industry18.3 Industry
PorcelainPorcelainPorcelain is a form of pottery of Porcelain is a form of pottery of
great beauty that some great beauty that some historians think was developed in historians think was developed in
the first century A.D.the first century A.D.
Porcelain was mass-produced.Porcelain was mass-produced.
Porcelain, circa Porcelain, circa 1600 A.D.1600 A.D.
Fine dishes are still called Fine dishes are still called “china” after fine porcelain.“china” after fine porcelain.
18.4 Military Technology18.4 Military Technology
GunpowderGunpowderThe discovery of gunpowder The discovery of gunpowder
made possible the development made possible the development of powerful weapons.of powerful weapons.
Gunpowder may have been Gunpowder may have been discovered by accident by people discovered by accident by people
looking for a way to extended looking for a way to extended life.life.
Gunpowder changed the way Gunpowder changed the way wars were conducted around the wars were conducted around the
world.world.
18.5 Everyday Objects18.5 Everyday Objects
Paper MoneyPaper Money Paper money replaced coins.Paper money replaced coins.
Paper money was printed with Paper money was printed with wood blocks using many colors wood blocks using many colors
on each bill.on each bill. Circa Circa 13781378
Paper money is the most common Paper money is the most common form of currency today.form of currency today.
18.5 Everyday Objects18.5 Everyday Objects
Mechanical ClockMechanical ClockThe mechanical clock had a wheel The mechanical clock had a wheel that made one revolution every that made one revolution every 24 hours. Dripping water turned 24 hours. Dripping water turned
it.it.
Every quarter hour drums would Every quarter hour drums would beat, and every hour a bell would beat, and every hour a bell would chime so people knew what time chime so people knew what time
it was. it was.
Modern mechanical clocks are Modern mechanical clocks are based on the same principles as based on the same principles as
early Chinese clocks.early Chinese clocks.
18.6 Disease Prevention18.6 Disease Prevention
Small Pox Small Pox Inoculation Inoculation
The Chinese developed a way to The Chinese developed a way to inoculate people against inoculate people against
smallpox.smallpox.
They made a powder from the They made a powder from the scab of an infected person and scab of an infected person and inserted it into the nose of the inserted it into the nose of the person who wanted protection.person who wanted protection.
There are vaccines for many There are vaccines for many diseases.diseases.
Other Inventions and Other Inventions and DiscoveriesDiscoveries
PaddlewheelPaddlewheel
BoatsBoatsPlaying Playing CardsCards
WatertightWatertightCompartmeCompartme
ntsnts
Segmented Segmented ArchArch
BridgesBridges
WoodblockWoodblockPrintingPrinting
Steel Steel ProductionProduction
ArtilleryArtilleryShellsShells CatapultsCatapults
RiflesRifles CannonsCannons FlamethrowFlamethrowersers
DisinfectantDisinfectantss
(Boiling to (Boiling to kill germs)kill germs)