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Strange but true experiments in physicsPowerPoint Presentation

Strange but true experiments in physics

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Strange but true experiments

in physics

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Miraculous air-pressure

The normal air pressure is 105 Pa = 105 N/m2= =1000 N/dm2.

So the force of the air pressure is 104 N(1000kg) on an approx. 10 dm2 surface.

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Magnet that repels graphite

Here the magnetic force has an effect in the direction of the smaller magnetic field.

So the diamagnetic graphite repels the magnet.

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Magnet that repels graphite - Levitation -

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Shoe-lace physics I

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Science on Stage

This shoe-lace will not undone (loosen) by itself.

This shoe-lace will undone (loosen) by itself.

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Which will flow outfaster?

- The same amount of water is in both of the plastic bottles.
- The hydrostatic pressure will be bigger at the deepest point of the right sided bottle.

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Determining the pressure in an air-balloon I

Here the height of the water-level is approx. 20 - 30 cm.

So according to this the pressure in the air-balloon is approx. 2 - 3 kPa.

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Determining the pressure in an air-balloon II

- Here the dynamometer, which contact-surface is3 cm2, shows approx. 1 N force.

- So according to this experiment, the pressure in an air-balloon is approx. 2 - 3 kPa too.

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Measuring our lung-pressure

- Here the average height that the people can achieve is 150 cm. It means that we can produce an approx. 15 kPa maximum pressure in our lung.
- Sporters can make much higher lung-pressure.

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Human beingpower as an electric cell

The aluminium fork is the negative output and the steel knife is the positive output.

With 5-6 people, the led will burn.

The Human being is the electrolyte.

Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

Science on Stage

Thank You for Your attention!Sebestyén Zoltán and Sebestyén Zsolt Hungary - Pécs, 2005 Szeptember

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