My opinion on why I think the light bulb is the

technological outcome that changed mankind.

The Light Bulb

By Grant

Without the light bulb we would need to use fire to see. This would be dangerous. So the light bulb is helping to make us safer.

Reason 1:

If the light bulb wasn't invented we would have to use kerosene oil which is a fossil fuel and would be less environmentally safe.

Reason 2:

Its used in lighthouses to stop ships from crashing into rocks and shore.

Reason 3:

It lights our way so at night in the dark we will know where we are going.

Reason 4:

Headlights on cars light the road so they wont crash into other cars.

Reason 5:

Light bulbs in torches allow us to see in caves, forests and used in emergencies.

Reason 6:

Light bulbs attached to microscopes allow us to see very small objects and insects

Reason 7:

Light bulbs in operating theatres allow surgeons to perform the most complicated operations.

Reason 8:

That's why I think the light bulb is the technological outcome that changed mankind.

Thanks For listening to my illuminating presentation