Page 93 - DK Children's Encyclopedia

Engineering SEE ALSO

▸ ▸ Bridges p.46
▸ ▸ Buildings p.48
Engineers use math and science to solve problems. ▸ ▸ Factories p.97
They invent and create machines, buildings, tools, and ▸ ▸ Inventions
other useful inventions that make our lives easier. pp.136–137

There are different types of engineers that specialize ▸ ▸ Machines p.150
in different areas. ▸ ▸ Materials p.157

Civil Chemical
Civil engineers Chemical engineers
design and build turn materials into
structures such as useful products,
buildings, bridges, including medicines.
and roads.

Electrical Mechanical
Electrical engineers Mechanical engineers
create parts for study movement,
devices such as heat, and energy to
computers, tablets, help them design new
and mobile phones. machines and tools.

Engineering process
Engineers develop older technology to make 3D printer
new, better designs. An invention like the wheel Engineers can now use
has changed over time from the earliest version computer-aided design
to a hi-tech modern one. (CAD) programs to make
three-dimensional (3-D)
Stone Wood Rubber and metal models of their designs.
The 3-D printer creates
the model using layers
of plastic.

3-D printer at work

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