Materials Revealed !
Materials Revealed !
  • 29
  • 88 193
Cooling with magnet! Developing magnetic refrigeration to make liquid hydrogen (2020/02/06)
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.
Original Japanese version was published at czcams.com/video/DCCXyyGx-pE/video.html on 2020/02/06.
zhlédnutí: 3 145

Video

Amazing! Water evaporates rapidly thanks to nanoparticles that convert sunlight to heat (2018/03/15)
zhlédnutí 1,3KPřed 5 měsíci
Only a few seconds after exposing a water surface to sunlight, vapor appears. Although the water remains at room temperature, it vigorously emits steam. This mysterious phenomenon is made possible with novel nano particles developed by NIMS. This is promising for the desalination of seawater because of its highly efficient conversion of sunlight to heat. Original Japanese version was published ...
Optical antennas: sophisticated infrared light manipulation technology (2020/11/04)
zhlédnutí 24KPřed 5 měsíci
Thank you for watching our video and leaving valuable comments, some of which pointed out that the background music didn't work well. We're currently working on a revised version. Please bear with us and return to our channel soon to see the improvements. Have you heard of "metamaterials"? These sophisticated materials have nano-scale patterns on their surfaces that allow us to control light. W...
A novel liquid that converts vibration into electricity! (2021/07/01)
zhlédnutí 2,7KPřed 5 měsíci
When you tap a piezoelectric material, it generates an electric current. However, these materials have until now always been solids. Here at NIMS, we created a flexible liquid version. This was made possible by attaching "branched side chains" to the piezoelectric molecules. Our skillful researchers continue to develop liquid versions of advanced solid materials. Japanese original version was p...
NIMS investigators: serious accident detectives! (2018/11/21)
zhlédnutí 77Před 5 měsíci
NIMS has found the causes of various accidents over the years, including a 1985 Japan Airlines plane crash. From a few faint clues found in the wreckage at the scene, we identified the immediate cause and technical pitfalls that led to the accident. In this video, we take a look at how our experts leverage their vast storehouses of metal materials experience and knowledge to solve these mysteri...
AI-aided discovery! Thermal insulating film with world-record-breaking capabilities (2019/10/02)
zhlédnutí 1,6KPřed 5 měsíci
Artificial intelligence has boosted NIMS's development of new materials! Using AI, we were able to skip the conventional process of experimenting with thousands of elemental combinations and rapidly discovered a thin film with world-record-breaking insulation capabilities. How did we use AI? What kinds of thin films did we make? Watch this video and find out! Original Japanese version was publi...
Self-healing structural ceramics (2018/10/10)
zhlédnutí 253Před 5 měsíci
Although the general public may view ceramics as fragile, we at NIMS have developed self-healing ceramics to boost the performance of aircraft engines, which operate at high temperatures and must be lightweight and fuel efficient. The first self-healing ceramic was invented in 1995 in Japan. However, its healing process required heating at 1000 degrees centigrade for 1000 hours. We elucidated t...
Episode 3: A secret of fiber fuse veiled in its bright light emission, Q & A part 2
zhlédnutí 245Před 10 měsíci
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 aud...
Episode 2: A secret of fiber fuse veiled in its bright light emission, Q & A part 1
zhlédnutí 147Před 11 měsíci
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...
A secret of fiber fuse veiled in its bright light emission
zhlédnutí 475Před 11 měsíci
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 ...
An easy enough and interesting rust prevention experiment!
zhlédnutí 328Před rokem
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.
An impressive color in a monotone scene
zhlédnutí 262Před rokem
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.
One-of-a-kind crystal in high demand with researchers (2022/12/27)
zhlédnutí 1,1KPřed rokem
Graphene exhibits various unique properties due to its special structure: th e ultimate thin atomic monolayer. Researchers are able to unveil its most interesting characteristics only thr ough the use of a special crystal. This is available only at NIMS. Watch this video and find out what the crystal is, how it is created and why researchers desperately want it.
A novel, high performance, low-cost all-solid-state battery production method (2022/08/08)
zhlédnutí 4,1KPřed rokem
All-solid-state batteries are promising because they are safe and can be recharged quickly. NIMS has developed a novel approach that vastly increases their energy density at low cost. This approach has generated intense interest because it utilizes expansion in the volume of Si electrodes to improve battery performance. In general, expansion of Si electrodes during charging is considered to be ...
CFRPs: promising light-weight materials made recyclable with bio-inspired technology! (2021/11/17)
zhlédnutí 285Před 2 lety
CFRPs (Carbon Fiber Reinforced Plastics) are promising materials for use in vehicles including cars and airplanes because their specific strength is ten times that of iron. On the other hand, they are still non-recyclable and have to be disposed of in landfills. However, NIMS has developed a novel method of inducing tough CFRP to decompose into substances that can then be recycled. This was ins...
Powerful coconut crab claws hint at new materials (2022/02/05)
zhlédnutí 780Před 2 lety
Powerful coconut crab claws hint at new materials (2022/02/05)
Observing hydrogen’s corrosive effects on metals with a unique microscope! (2019/01/23)
zhlédnutí 452Před 2 lety
Observing hydrogen’s corrosive effects on metals with a unique microscope! (2019/01/23)
Visualizing nanoscale heat pathways in composite materials (2019/10/02)
zhlédnutí 370Před 3 lety
Visualizing nanoscale heat pathways in composite materials (2019/10/02)
Watch! A clear view of human breath, droplets and the value of wearing a mask (2021/05/12)
zhlédnutí 1,1KPřed 3 lety
Watch! A clear view of human breath, droplets and the value of wearing a mask (2021/05/12)
Hydrogen liquefaction using superconducting magnet !
zhlédnutí 5KPřed 3 lety
Hydrogen liquefaction using superconducting magnet !
Check out this Street Racer at NIMS!
zhlédnutí 651Před 9 lety
Check out this Street Racer at NIMS!
Commemoration for winning the Nobel Prize! “An Inside Look at the True
zhlédnutí 440Před 9 lety
Commemoration for winning the Nobel Prize! “An Inside Look at the True
Christmas with Fiber Fuse
zhlédnutí 4,7KPřed 9 lety
Christmas with Fiber Fuse
A message to future scientists #03: Electromagnetic Induction
zhlédnutí 2,4KPřed 10 lety
A message to future scientists #03: Electromagnetic Induction
A message to future scientists #02: Shape Memory Materials
zhlédnutí 9KPřed 10 lety
A message to future scientists #02: Shape Memory Materials
A message to future scientists #01: Superconductivity
zhlédnutí 12KPřed 10 lety
A message to future scientists #01: Superconductivity
Vivid! Experiment Video 1 : Heat Resistant Metal
zhlédnutí 2,5KPřed 10 lety
Vivid! Experiment Video 1 : Heat Resistant Metal
Vivid! Experiment Video 3 : Diamonds !
zhlédnutí 6KPřed 10 lety
Vivid! Experiment Video 3 : Diamonds !
Vivid! Experiment Video 2 : Neodymium Motor
zhlédnutí 2,6KPřed 10 lety
Vivid! Experiment Video 2 : Neodymium Motor