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  • This episode of DNews is brought to you by Canon PIXMA Pro professional inkjet printers:

  • Exactly as you envisioned.

  • Each element in the periodic table has special properties, and sometimes combining them together

  • gets a good result, but it's hard to do! What if they could be combined using simple home

  • office equipment?

  • I was sent a study this week and looked at it blankly for an hour before I really got

  • it. It was about the plasmonics of metamaterials. Yeah. Plasmonics is the study of the interaction

  • between electromagnetic fields and free electrons in metals. Metamaterials are precisely engineered

  • components which have properties that wouldn't show up in nature. Essentially, it's how the

  • design and engineering of a thing can affect the behavior of electromagnetic energy, like

  • electricity or light.

  • Metamaterials can be used to create invisibility cloaks, changing how light interacts with

  • a blanket of special elements, or protect sensitive astronauts in space be changing

  • how cosmic radiation is absorbed or reflected. They even built a black hole analog in a lab

  • using plasmonic metamaterials.

  • The value of the metamaterial was discovered just after World War II when scientists and

  • engineers were trying to develop new technologies to interact with radio, microwave and light

  • frequencies. Today, engineers are working to use metamaterials affect commercial, military

  • and scientific applications! And thanks to a study in Advanced Optical Materials, they

  • don't have to use millions of dollars of equipment to do it!

  • As you might imagine, creating these things can cost millions of dollars and take months

  • with specialized equipment, until recently. Carbon is one of the most common elements

  • on the planet; think, coal, diamonds, humans. It's really variable, but organized into a

  • lattice at the molecular level? Then you get graphene, a 1-atom thick perfect electrical

  • capacitor! Roll that into tubes and it's super strong! Layer it with copper and you get a

  • metamaterial -- a highly engineered structure that is 500 times stronger than the pure metal.

  • The best part, graphene can be printed with a regular inkjet printer.

  • Engineers are problem solvers, and the faster you can solve a problem, the more things you

  • can fix. Now, thanks to researchers at the University of Utah, metamaterials can be created

  • using a regular four-color inkjet printer loaded with carbon and silver "ink." Using

  • that, researchers were able to build 10 different sample prototypes in a fraction of the time

  • of traditional manufacturing, and the materials could be tested against terahertz-waves to

  • ensure they block and reflect them JUST right.

  • The researchers were pumped that a simple inkjet printer could create super intricate

  • plasmonic metamaterials, which makes frickin' sense. Other studies have shown they can print

  • graphene too. Who knew these things would be so useful!? These researchers say the ability

  • to create these prototypes might revolutionize the engineering of wireless data transmission,

  • magnetic materials, the sensing of biological weapons, and even spacecraft insulation!

  • Speaking of inkjet printers, we’d like to thank Canon for making this episode possible.

  • With Canon PIXMA Pro Professional inkjet printers, you can expect a level of quality and accuracy

  • that keeps each print true to your unique vision. All backed by Canon's commitment to

  • provide professionals with fast, high quality service you can depend on.

  • Do you have a question for me

  • and Tara?

This episode of DNews is brought to you by Canon PIXMA Pro professional inkjet printers:


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B1 中級 美國腔

工程師如何戰勝自然 (How Engineers Are Beating Nature)

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    Chun Wing Tong 發佈於 2021 年 01 月 14 日