mini lessson 1
DESCRIPTION
TRANSCRIPT
PRE-MODERN INVENTIONS
TheWedge
TheCalendar
Sundial Clocks
TheAbacus
The Canoe
Hieroglyphs
ThePlow
The Chariot
MODERN INVENTIONS
The ChiselPlow
The Automobile
The Calculator
QuartzClock
The Chainsaw
Microsoft Word
The Airplane
ThePDA(Personal Digital Assistance)