Internal Combustion Engine

3D printing "Additive manufacturing"

A child has an artificial hand which have some parts manufactured with #3D_printing.

Archimedes rule

How to fix windows 8.1 store easily

https://www.youtube.com/watch?v=jKwF2EYLt50

Can by inventor pro 2015

Spy penguin

A spy penguin! 
Because penguins are very ashamed animals, some scientists sent a spy penguin to watch their behavior close.

Steel making

Steel is an alloy of iron, containing up to 2% of carbon (usually up to 1%).

• Steel is produced from pig iron (liquid) by processes, involving reducing the amounts of  carbon, silicon and phosphorous.
• The main steel making methods are: 

1. Basic oxygen furnace (basic oxygen converter).

2.Electric-arc furnace.

                                               Basic oxygen furnace (basic oxygen converter).

Electric-arc furnace.

The European Space Agency created this video to explain how they prepared for the comet landing that happened today. This was a big day for space exploration.

How engine works

What are cams?

Cams convert rotary oscillating or linear motion into a linear or reciprocating action to carry out useful work.

Types of cams:

1. Plate cam
2. cylindrical cam
3. Face cam
4. End cam

Plate cam:

Sometimes called a disc, radial or edge cam. Made up of a flat plate or disc with an edge profile to transmit motion.

cylindrical cam:

Sometimes called a barrel cam. It’s curved surface has a groove machined, within which a follower is contained. The movement is parallel to cam axis.

Face cam:

In its flat surface, this rotary cam has a groove cut within which a constrained follower moves. The groove ensures no need for a return spring.

End cam:

In this case the end of the cylindrical cam has the profile machined on the end.

Helium (He2)

Strategies for Strengthening

One of the Strategies for Strengthening is Precipitation Strengthening

Application: