Physics Youtube

Sodium Sulfate Anhydrous Crystal Growing

2011-04-18T18:40:00.000-07:00

10PPT04 Ray diagram drawing point source

2011-04-11T18:19:00.001-07:00

Reflection in a plane mirror (2)

2011-04-11T18:17:00.000-07:00

Reflection in a plane miror (1)

2011-04-11T18:16:00.000-07:00

Solubility

2011-04-11T17:58:00.001-07:00

rate of dissolving wrt temperature with stirring

2011-04-11T17:51:00.001-07:00

Soluble and Insoluble

2011-04-11T17:46:00.000-07:00

Make Crystal

2011-04-11T17:44:00.000-07:00

Fukushima Nuclear Reactor Problem Explained

2011-03-15T20:34:00.001-07:00

Kylie's Hair Standing on End

2010-12-15T21:07:00.001-08:00

Static Electricity demonstrations

2010-12-15T21:01:00.000-08:00

Static Electricity and Water

2010-12-15T01:11:00.001-08:00

Gas Pump Explosion Caused by Static Electricity

2010-12-15T01:09:00.000-08:00

E=mc²: Einstein explains his famous formula

2010-12-09T00:35:00.000-08:00

Radiation Dose - Part 2 (Radiation Protection)

2010-12-08T20:40:00.000-08:00

Pros and cons of nuclear power

2010-12-08T20:18:00.000-08:00

Advantages of nuclear power generation:

1.Little Pollution Nuclear power generation does emit relatively low amounts of carbon dioxide (CO2). The emissions of green house gases and therefore the contribution of nuclear power plants to global warming is therefore relatively little.

2.Reliability Nuclear power plants need little fuel, so they are less vulnerable to shortages because of strikes or natural disasters. International relations will have little effect on the supply of fuel to the reactors because uranium is evenly deposited around the globe.
One disadvantage of uranium mining is that it leaves the residues from chemical processing of the ore, which leads to radon exposure to the public. These effects do not outweigh the benefits by the fact that mining uranium out of the ground reduces future radon exposures.
Coal burning leaves ashes that will increase future radon exposures. The estimates of radon show that it is safer to use nuclear fuel than burn coal. Mining of the fuel required to operate a nuclear plant for one year will avert a few hundred deaths, while the ashes from a coal-burning plant will cause 30 deaths

3.This technology is readily available and safe, it does not have to be developed first.Nuclear power is one the safest methods of producing energy. Each year, 10,000 to 50,000 Americans die from respiratory diseases due to the burning of coal, and 300 are killed in mining and transportation accidents.
In contrast, no Americans have died or been seriously injured because of a reactor accident or radiation exposure from American nuclear power plants.

There are a number of safety mechanisms that make the chances of reactor accidents very low. A series of barriers separates the radiation and heat of the reactor core from the outside. The reactor core is contained within a 9-inch thick steel pressure vessel. The pressure vessel is surrounded by a thick concrete wall. This is inside a sealed steel containment structure, which itself is inside a steel-reinforced concrete dome four feet thick.

The dome is designed to withstand extremes such as earthquakes or a direct hit by a crashing airliner. There is also a large number of sensors that pick up increases in radiation or humidity.

An increase in radiation or humidity could mean there is a leak.

There are systems that control and stop the chain reaction if necessary.

An Emergency Core Cooling System ensures that in the event of an accident there is enough cooling water to cool the reactor.

4.It is possible to generate a high amount of electrical energy in one single plant.

Disadvantages of nuclear power generation:

1.The problem of radioactive waste is still an unsolved one. The waste from nuclear energy is extremely dangerous and it has to be carefully looked after for several thousand years (10'000 years according to United States Environmental Protection Agency standards).

2.High risks: Despite a generally high security standard, accidents can still happen. It is technically impossible to build a plant with 100% security. A small probability of failure will always last. The consequences of an accident would be absolutely devastating both for human being as for the nature (see here , here or here ). The more nuclear power plants (and nuclear waste storage shelters) are built, the higher is the probability of a disastrous failure somewhere in the world.

3. Nuclear power plants as well as nuclear waste could be preferred targets for terrorist attacks. No atomic energy plant in the world could withstand an attack similar to 9/11 in Yew York. Such a terrorist act would have catastrophic effects for the whole world.

4. During the operation of nuclear power plants, radioactive waste is produced, which in turn can be used for the production of nuclear weapons. In addition, the same know-how used to design nuclear power plants can to a certain extent be used to build nuclear weapons (nuclear proliferation).

5. The energy source for nuclear energy is Uranium. Uranium is a scarce resource, its supply is estimated to last only for the next 30 to 60 years depending on the actual demand.

6. The time frame needed for formalities, planning and building of a new nuclear power generation plant is in the range of 20 to 30 years in the western democracies. In other words: It is an illusion to build new nuclear power plants in a short time.

Physics Nuclear fission E=mc²

2010-12-06T17:01:00.001-08:00

How nuclear energy works

2010-12-06T16:52:00.001-08:00

Radiation Dose - Part 1 (Radiation Protection)

2010-12-06T16:42:00.000-08:00

How does an X-ray Tube Work (Radiation Protection)

2010-12-06T16:41:00.001-08:00

Ion Chamber Demonstration

2010-12-06T16:40:00.001-08:00

Geiger Müller Tube (GM) - Part 1 - Radiation Protection

2010-12-06T16:36:00.001-08:00

Fission And Fusion

2010-12-06T16:34:00.001-08:00

Microorganisms

2010-12-02T20:15:00.001-08:00

Amoeba in motion

2010-12-02T20:09:00.001-08:00

Red Blood Cells

2010-12-02T20:06:00.001-08:00

Smooth Muscle Cells

2010-12-02T20:01:00.001-08:00

How Neurons Work

2010-12-02T19:59:00.001-08:00

NEURON

2010-12-02T19:58:00.001-08:00

Stem Cells

2010-12-02T19:53:00.001-08:00

Onion cells

2010-12-02T19:51:00.001-08:00

Plant Cells

2010-12-02T19:50:00.000-08:00

sturgeon in ocean park

2010-11-25T20:22:00.001-08:00

Heat Transfer

2010-11-23T21:27:00.000-08:00

Convection Currents

2010-11-23T21:10:00.000-08:00

Cathode Ray Tube

2010-11-21T21:41:00.000-08:00

tubo di Crookes

2010-11-21T21:39:00.001-08:00

Crookes Maltese Cross tube

2010-11-21T21:38:00.000-08:00

Parabolic motion - Range of a projectile

2010-11-19T01:31:00.001-08:00

Momentum in Physics

2010-11-19T01:18:00.000-08:00

Sir Isaac Newton Laws Of Motion And Law Of Gravity And Its Proof

2010-11-18T23:50:00.000-08:00

Centripetal Acceleration

2010-11-18T20:32:00.000-08:00

Swing a bucket of water

2010-11-18T20:24:00.001-08:00

Ball on a string

2010-11-18T20:21:00.001-08:00

Conical Pendulum

2010-11-18T20:20:00.001-08:00

Cars driving on a wall centrifugal force

2010-11-18T20:19:00.001-08:00

Car on a Banked Track

2010-11-18T20:14:00.001-08:00

Circular Motion - Science Theater 016

2010-11-18T20:13:00.001-08:00

RIDE

2010-11-18T20:11:00.000-08:00

Vertebrates and Invertebrates 1

2010-11-18T20:00:00.000-08:00

Bernoulli's Principle

2010-11-17T22:08:00.001-08:00

Liquid Pressure

2010-11-17T22:07:00.000-08:00

Bernoulli's Flame

2010-11-17T22:06:00.001-08:00

Water Sprayer2

2010-11-17T22:05:00.001-08:00

Jumping Egg - by David

2010-11-17T22:04:00.001-08:00

's Theorem And Its Application

2010-11-17T21:57:00.001-08:00

Analysis of a Pitot Tube

2010-11-17T21:52:00.000-08:00

spin Table Tennis Technique: Ball and Spin

2010-11-17T21:29:00.000-08:00

How the NASH Steam Jet Ejector Works st

2010-11-17T21:27:00.001-08:00

How Airplanes Work

2010-11-17T21:24:00.001-08:00

Bernoulli's Principle

2010-11-17T21:20:00.001-08:00

Bernoulli's principle - physics experiment

2010-11-17T21:08:00.000-08:00

ANIMAL-IN ITS HABITAT

2010-11-11T20:31:00.000-08:00

Animals in medical research: To use or not to use?

2010-11-11T19:52:00.000-08:00

Grade 3, Theme 4, Animal Habitats.wmv

2010-11-11T01:28:00.001-08:00

Ever seen a caterpillar transforming?

2010-11-10T22:31:00.001-08:00

What is an Insect?

2010-11-10T22:29:00.000-08:00

What is a Fish?

2010-11-10T22:28:00.001-08:00

What is a Bird?

2010-11-10T22:27:00.001-08:00

What is an Amphibian?

2010-11-10T22:26:00.002-08:00

What is a Reptile?

2010-11-10T22:26:00.001-08:00

Vertebrates and Invertebrates

2010-11-10T22:21:00.001-08:00

http://www.youtube.com/watch?v=E7dvEh5lmg8&feature=related

What is a mammal?

2010-11-10T22:18:00.000-08:00

lecture about electromagnetic induction

2010-09-15T21:42:00.000-07:00

Raytek MT6 Infrared Thermometer Review

2010-09-14T16:53:00.000-07:00

Figuras de Lissajous en el osciloscopio

2010-09-06T21:40:00.000-07:00

simulation of RLC series circuit

2010-06-01T23:34:00.000-07:00

http://qbx6.ltu.edu/s_schneider/physlets/main/rlc.shtml

My Eddy Current Wood to Aluminum Experiment

2010-06-01T23:17:00.001-07:00

Physics Lab Demo 12: Eddy Currents

2010-06-01T23:06:00.001-07:00

AC generator animation

2010-06-01T22:53:00.001-07:00

Electromagnetic induction by moving magnet into a coil

2010-06-01T22:47:00.001-07:00

Moving Coil Galvanometer

2010-06-01T22:40:00.001-07:00

Direct Current Electric Motor

2010-06-01T21:50:00.000-07:00

MIT Physics Demo -- Forces on a Current-Carrying Wire

2010-06-01T21:33:00.000-07:00

http://www.youtube.com/watch?v=43AeuDvWc0k

HALL PROBE

2010-05-31T22:43:00.001-07:00

Charged particle in a magnetic field

2010-05-31T22:41:00.001-07:00

Magnetic Flux

2010-05-31T22:36:00.000-07:00

http://www.youtube.com/watch?v=KXFXUrBWp-c

What is the magnetic field?

2010-05-31T17:30:00.000-07:00

Newton's Laws of Motion illustrated with 3D animations and motion graphics

2010-05-18T00:46:00.000-07:00

Newton's Law Of Inertia

2010-05-18T00:40:00.001-07:00

Putting the Electromagnetic Spectrum to Use

2010-05-17T22:31:00.001-07:00

Seeing Atomic Spectra

2010-05-11T16:56:00.001-07:00

Young's Double slit Experiment

2010-05-11T16:46:00.000-07:00

Young's Double Slit Experiment

2010-05-11T16:38:00.001-07:00

Fun with Brownian Motion Zigzag path

2010-05-04T01:25:00.000-07:00

Brownian Motion

2010-05-04T01:22:00.000-07:00

Suzanne Mikawa - Water + Alcohol Volume

2010-05-04T00:58:00.000-07:00

Measure 50 ml of water and then 50 ml of alcohol.
Mix the water and alcohol.
What is the volume of the mixture?

HowStuffWorks Videos States of Matter Changes in State

2010-05-03T17:55:00.001-07:00

HowStuffWorks Videos States of Matter Gases

2010-05-03T17:54:00.001-07:00

C010 Boiling point of water

2010-05-03T17:35:00.000-07:00