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Video Library
Amazing experiment!

Amazing experiment!

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Episode 3: A secret of fiber fuse veiled in its bright light emission, Q & A part 2

2023.09.29 Release

Episode 3: A secret of fiber fuse veiled in its bright light emission, Q & A part 2

Amazing experiment!

2023.09.29 Release

Our fiber fuse demonstration fascinates everyone including children.
They try to give us questions based on their background knowledge after the show.
In this video, we try to relate their curiosity to our daily life
in order to refresh your view on recent optical technologies.
---
Collaborated with Photron Limited in ultra-high speed photography
Acknowledgements
We gratefully use the following audio tracks and illustrations:
Music: "Happy Alley", "No Frills Comparsa" and "Lobby Time" by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/
Illustration: DaChoJu-GIGA (chojugiga.com) by TopeconHeroes Dahyama

Episode 2: A secret of fiber fuse veiled in its bright light emission, Q & A part 1

2023.09.22 Release

Episode 2: A secret of fiber fuse veiled in its bright light emission, Q & A part 1

Amazing experiment!

2023.09.22 Release

Everyone is fascinated when they watch our fiber fuse demonstration.
However, only specialists know what is exactly happening.
In this video, we answer to typical questions given by the participants to deepen your knowledge of this fiber fuse phenomenon.
---
Acknowledgements
We gratefully use the following audio tracks and illustrations:
Music: "Sweeter Vermouth", "Sunshine" and "Hyperfun" by Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/
Illustration: DaChoJu-GIGA (chojugiga.com) by TopeconHeroes Dahyama

A secret of fiber fuse veiled in its bright light emission

2023.09.15 Release

A secret of fiber fuse veiled in its bright light emission

Amazing experiment!

2023.09.15 Release

We at NIMS have been performing a demonstration of fiber fuse for our visitors since 2009.
Just one look will leave you fascinated with the bright spot of light running along an optical fiber.
However, only a few of you probably know the research conducted on this phenomenon by a researcher in NIMS.
In this video, we briefly show how we focused on this running target and revealed the mechanism of its strange behavior.
---
Collaborated with Photron Limited in ultra-high speed photography
Acknowledgements
We gratefully use the following audio tracks and illustrations:
Music: "Blue Sca", "Brightly Fancy" and "Consort for Brass" by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/
Illustration: DaChoJu-GIGA (https://chojugiga.com/) by TopeconHeroes Dahyama

An impressive color in a monotone scene

2022.10.05 Release

An impressive color in a monotone scene

Amazing experiment!

2022.10.05 Release

When a scene is subjected to a single wavelength of light, it appears to be monotone.
However, we can add a different color. Any idea how?
Of course, we don't do any image processing.
Watch this video to find out how we can make use of the properties of light and materials.

An easy enough and interesting rust prevention experiment!

2022.08.10 Release

An easy enough and interesting rust prevention experiment!

Amazing experiment!

2022.08.10 Release

Rust ruins metal objects.
It's insidious. However, the mechanism behind it is interesting. In this video, we demonstrate a simple rust-prevention experiment you can perform using household materials.

How do wireless smartphone chargers work? / Amazing experiment

2021.10.08 Release

How do wireless smartphone chargers work? / Amazing experiment

Amazing experiment!

2021.10.08 Release

Some smartphones can be charged without a cable.
Induction heaters can also make LEDs flash remotely.
How is electrical energy transferred through the air?
This clever mechanism utilizes the difference between batteries and wall outlets.

Warning: Do not place an LED circuit on an induction heater. It is dangerous to do so without taking special precautions.

Why does it shines? A brief history of human lightmaking

2021.03.26 Release

Why does it shines? A brief history of human lightmaking

Amazing experiment!

2021.03.26 Release

From our ancestors' first fires to modern LEDs, human beings have found new ways to make and use light.
However, the principles of light emission differ.
Why do flames emit light? Why don't bright LEDs overheat?
In this video, we cover the history of advances in human lightmaking made possible by new discoveries in physics.

Hemispherical soap bubbles that resemble the Death Star!

2020.09.01 Release

Hemispherical soap bubbles that resemble the Death Star!

Amazing experiment!

2020.09.01 Release

You can find a bit of science in something that absorbed you as a child.

Have you ever seen a hemispherical soap bubble?

If not, you can make some by exposing soap bubbles to the air for a while.

Once you find one, consider how it was created. Here is the answer.

FYI: For the sake of simplicity, we have disregarded a reflection phase change that occurs when light waves are reflected by a bubble's surface.

Cooling with magnet! Developing magnetic refrigeration to make liquid hydrogen

2020.02.06 Release

Cooling with magnet! Developing magnetic refrigeration to make liquid hydrogen

Amazing experiment!

2020.02.06 Release

Although it may seem strange, magnets can be used to cool other materials. This technology is called "magnetic refrigeration."

You may be wondering how this is possible. In this video, we illustrate the principle using air conditioners and rubber balloons.

Researchers at NIMS are working on magnetic refrigeration to enable liquid hydrogen to be made, stored and transported more efficiently, contributing to the development of a hydrogen economy in the near future.

FYI: In this video, we cooled a piece of gadolinium metal, which exhibits ferromagnetism at room temperature in the same way that iron, cobalt and nickel do. Gadolinium loses its ferromagnetic properties when it is heated even slightly. This makes it useful in magnetic refrigeration.

Using a material to make a one-way light path!

2019.08.20 Release

Using a material to make a one-way light path!

Amazing experiment!

2019.08.20 Release

A large, south-facing window can make you feel freer and more relaxed,
but it can also make you anxious about being watched!

In general, light can propagate through materials in all directions.
However, a one-way light path can be created with some specific materials and components.

In fact, we would have a lot of trouble without a device called an "optical isolator."
In this video, we'll show you how it works and where it is used.

FYI: A detailed explanation is given at the end for those interested.