Introducing
Your new presentation assistant.
Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.
Trending searches
MACHINES THEN AND NOW
1
DICTIONARY
Useful- útil Lift- v. elevar Heavy-Pesat
Used-v.utilitzar Passat Ramps- ramps Gantry- Pòrtic
Stone-pedra Rollers-troncs
Needed-v.necessitar Passat Cranes-grúes
Had-v.tenir Passat Wheels-rodes
Called-v.anomenat Passat Pulleys- politges
Block- bloc Easier-fàcil
CRANES - GREECE
EGYPTIANS
About 2.500 years ago the Ancients Greeks used big cranes to build temples. The cranes were made of wood, they had many ropes and little wheels called pulleys. They pulled the rope and lifted the block.
RAMPS - EGYPT
Ramps are useful because they help us lift objects more easily. More than 5.000 years ago the Ancient Egyptians used ramps to build pyramids. They used rollers to move large blocks of stone up the ramps. They needed lots of workers because the blocks were very heavy.
INTRODUCTION
Machines make our live easier. We use them to do work, to communicate, to have fun… There are two types of machines.
Simples, with only one of two parts.
Complex, with many parts that work together