-
Telescope.
The telescope took with him many changes. It could be demostraded many theories.
Advantages:
-People could see things that was far.
-People could see the stars and sky.
-It reveals our location in the universe.
Disadvantages:
-It is affected by termal changes.
-You have to clean it often.
-If it's dirty, you will see wih difficulty. -
The Seeder.
The seeder maked a change in the society because it maked the farming activities easier.
Advantages:
-It is easier to put the correct number of seeds to plant.
-It makes easier the farming activities.
-It isn't so hard for humans because we have this machine.
Disadvantages:
-Bad effects in the land.
-It is dangerous because it can be accidents.
-The farmers lost their job. -
Thermometer.
The thermometer made a big impact because the humans could know the temperature of the atmosphere and alsoof people or animals.
Advantages:
-People could know if the others were sick.
-It is easy to transport.
-It is cheap (now).
-Its compatibility with different media.
Disadvantages:
-Sometimes, it can be dangerous.
-In its beginning, it was expensive.
-It can be broken easily. -
Lightning conductor.
The lightning conductor was invented by Benjamin Franklin. It changed the life for a lot of people, ¡there wasn't more fear at the storms!
Adavntages:
-It protects the houses and machines from storms.
-Deacreses the intensity of lightnings.
-Avoid fires.
Disadvantages:
-The lightning conductor can broke and it's dangerous.
-At first, the lightning conductor was expensive.
-It isn't so important, but it was considerated ugly. -
Hot-air ballon.
Thanks to the hot-air ballon people could see the sky with teir own eyes.
Adavantages:
-It is driven with the air.
-You can fly high.
-I does no emit harmful gases.
Disadvantage:
-It can be dangerous.
-It dangerous fot the birds.
-It can get tanglet.