Hannahhaifisch - HH

hannahhaifisch - HH

More Posts from Hannahhaifisch and Others

7 years ago
Quantum Tunnelling

Quantum tunnelling

Tunneling is a quantum mechanical effect. A tunneling current occurs when electrons move through a barrier that they classically shouldn’t be able to move through. In classical terms, if you don’t have enough energy to move “over” a barrier, you won’t. However, in the quantum mechanical world, electrons have wavelike properties. These waves don’t end abruptly at a wall or barrier, but taper off quickly. If the barrier is thin enough, the probability function may extend into the next region, through the barrier! Because of the small probability of an electron being on the other side of the barrier, given enough electrons, some will indeed move through and appear on the other side. When an electron moves through the barrier in this fashion, it is called tunneling.

image

Quantum mechanics tells us that electrons have both wave and particle-like properties. Tunneling is an effect of the wavelike nature.

image

The top image shows us that when an electron (the wave) hits a barrier, the wave doesn’t abruptly end, but tapers off very quickly - exponentially. For a thick barrier, the wave doesn’t get past.

The bottom image shows the scenario if the barrier is quite thin (about a nanometer). Part of the wave does get through and therefore some electrons may appear on the other side of the barrier.

Because of the sharp decay of the probability function through the barrier, the number of electrons that will actually tunnel is very dependent upon the thickness of the barrier. The current through the barrier drops off exponentially with the barrier thickness

Source: nanoscience.com | Images: x | x | x

8 years ago
Let It Go ❄

Let it go ❄

(snowflake designs by Tomoko Fuae, Joseph Wu, Shuzo Fujimoto, and Dennis Walker)

#snowflakes #origami #paperart #papercraft #paper #art #craft #design #sculpture #daily #illustration #instaart #instaartist #snow #snowflake #winter #ice #frozen #elsa #papersnowflakes

7 years ago
Physicists Confirm Quantum Theory Proposed In 1930s

Physicists Confirm Quantum Theory Proposed in 1930s

http://www.sci-news.com/physics/quantum-tunneling-water-05422.html

9 years ago
Robert Irwin @ Art Basel 2015

Robert Irwin @ Art Basel 2015

Black 3, 2008

via

8 years ago
Interlocked Coins Form Complex Geometric Sculptures
Interlocked Coins Form Complex Geometric Sculptures
Interlocked Coins Form Complex Geometric Sculptures
Interlocked Coins Form Complex Geometric Sculptures
Interlocked Coins Form Complex Geometric Sculptures
Interlocked Coins Form Complex Geometric Sculptures
Interlocked Coins Form Complex Geometric Sculptures
Interlocked Coins Form Complex Geometric Sculptures
Interlocked Coins Form Complex Geometric Sculptures
Interlocked Coins Form Complex Geometric Sculptures

Interlocked Coins Form Complex Geometric Sculptures

8 years ago
Images Of Jupiter Taken By JunoCam On NASA’s Juno Spacecraft.
Images Of Jupiter Taken By JunoCam On NASA’s Juno Spacecraft.
Images Of Jupiter Taken By JunoCam On NASA’s Juno Spacecraft.
Images Of Jupiter Taken By JunoCam On NASA’s Juno Spacecraft.
Images Of Jupiter Taken By JunoCam On NASA’s Juno Spacecraft.
Images Of Jupiter Taken By JunoCam On NASA’s Juno Spacecraft.
Images Of Jupiter Taken By JunoCam On NASA’s Juno Spacecraft.
Images Of Jupiter Taken By JunoCam On NASA’s Juno Spacecraft.
Images Of Jupiter Taken By JunoCam On NASA’s Juno Spacecraft.

Images of Jupiter taken by JunoCam on NASA’s Juno spacecraft.

image

Mission Juno

Juno is a NASA spacecraft. It is exploring the planet Jupiter. Juno launched from Earth in 2011. It reached Jupiter in 2016. That was a five-year trip!

The name “Juno” comes from stories told by the Romans long ago. In the stories, Juno was the wife of Jupiter. Jupiter hid behind clouds so no one could see him causing trouble. But Juno could see through the clouds.

Juno has science tools to study Jupiter’s atmosphere. (The atmosphere is the layer of gases around a planet.) Juno will take the first pictures of Jupiter’s poles. The spacecraft will study the lights around Jupiter’s north and south poles, too.

Juno will help scientists understand how Jupiter was made. The spacecraft will help them learn how Jupiter has changed, too. The new discoveries can help us understand more about our solar system.

Sound of Jupiter’s Magnetosphere: Click here

Credit: NASA / JPL-Caltech / Mission Juno / Jason Major / Luca Fornaciari /  Gerald Eichstädt

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hi! i am 32, cis female, based in berlin. i like art and sciences.

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