Let's make a video that discusses different inventions that were almost impossible to make, but after years or centuries, scientists managed to find the answer and the video could discuss the challenges faced in their development. 1) Blue LEDs. LEDs do not get their color from their plastic covers, but rather from the electronics themselves. The video could explain that blue LEDs were difficult to create, and for decades, only red and green LEDs were available. The ability to create blue LEDs would allow for the mixing of red, green, and blue to create white, unlocking the use of LEDs for various types of lighting that is why scientists were eager to find a solution. 2) Graphene - Scientists already knew about the theoretical existence of materials comprising single atomic layers but no-one had previously been able to isolate one. Since 1859 scientists had been trying to achieve a single layer using chemical and mechanical methods involving expensive and specialised equipment. However, when a single sheet of graphene was finally isolated, it was done using a cheap and familiar piece of equipment—ordinary sticky tape. 3) Flying machines: Though da Vinci's detailed sketches captured the world's imagination, achieving flight required advancements in materials like lightweight metals and powerful engines, things the Middle Ages simply lacked. 4) Touchscreens: The concept of a responsive touch interface on electronics existed for decades, appearing in sci-fi movies and novels. However, the technology to reliably detect and interpret finger touches on screens took considerable time to develop. 5) Artificial diamonds: Diamonds have captivated humanity for centuries, but creating them artificially seemed impossible. Scientists understood the basic physics involved, but replicating the extreme pressure and temperature conditions under which natural diamonds form proved formidable. In the 1950s, breakthroughs in high-pressure, high-temperature (HPHT) techno Credit: CC BY 2.0 https://creativecommons.org/licenses/by/2.0: Steve Jobs WWDC 2008: By Erik Pitti - https://flic.kr/p/4UHfGg, https://commons.wikimedia.org/w/index.php?curid=16942990 Stumpe Capacitance Touchscreen: By Maximilien Brice - https://flic.kr/p/83R6yq, https://commons.wikimedia.org/w/index.php?curid=10423286 CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/: Blue LED and Reflection: By Alexofdodd, https://commons.wikimedia.org/w/index.php?curid=15518177 Nobel Prize 2010: By Holger Motzkau, https://commons.wikimedia.org/w/index.php?curid=17496568 Steve Jobs: By Matthew Yohe, https://commons.wikimedia.org/w/index.php?curid=16889201 Comdex 1986: By GeneMosher, https://commons.wikimedia.org/w/index.php?curid=21249681 CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0: LB Film 1.5mN: By Krischkrisch, https://commons.wikimedia.org/w/index.php?curid=78934466 Graphene Scotch Tape: By Ququ, https://commons.wikimedia.org/w/index.php?curid=50135473 In-flight entertainment equipment Touchscreen: By ETH-Bibliothek Zürich, Bildarchiv/Stiftung Luftbild Schweiz/Swissair, https://commons.wikimedia.org/w/index.php?curid=145701991 Sony Ericsson P800: By Zache, https://commons.wikimedia.org/w/index.php?curid=27580188 World's first laser: By Theodore and Kathleen Maiman, https://commons.wikimedia.org/w/index.php?curid=91493871 Fluorescence in calcite: By Jan Pavelka, https://commons.wikimedia.org/w/index.php?curid=45341180 CC BY 4.0 https://creativecommons.org/licenses/by/4.0: Bent Stumpe: By Sophia Elizabeth Bennett/CERN - https://cds.cern.ch/record/2229598, https://commons.wikimedia.org/w/index.php?curid=86432869 Diamonds: By Bilovitskiy, https://commons.wikimedia.org/w/index.php?curid=142172269 Animation is created by Bright Side. #brightside ---------------------------------------------------------------------------------------- Music from TheSoul Sound: https://thesoul-sound.com/ Listen to Bright Side on: Spotify - https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV Apple Podcast - https://podcasts.apple.com/podcast/idhttps-podcasts-apple-com-podcast-bright-side/id1554898078 ---------------------------------------------------------------------------------------- Our Social Media: Facebook - https://www.facebook.com/brightside/ Instagram - https://www.instagram.com/brightside.official/ Tik Tok - https://www.tiktok.com/@brightside.official?lang=en Snapchat - https://www.snapchat.com/p/c6a1e38a-bff1-4a40-9731-2c8234ccb19f/1866144599336960 Stock materials (photos, footages and other): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ---------------------------------------------------------------------------------------- For more videos and articles visit: http://www.brightside.me
Category
😹
FunTranscript
00:00Traditional LEDs have been around for years, emitting colors like red or green. However,
00:07creating blue LEDs was a tough nut to crack due to the complexity of the process. In 2014,
00:14three Japanese researchers snagged the Nobel Prize in Physics for their work in making blue
00:20LEDs a reality. They developed a new semiconductor material called gallium nitride, which paved the
00:27way for efficient blue light emission. This breakthrough not only revolutionized the lighting
00:32industry, but also contributed to sustainable energy solutions. By combining red, green,
00:39and blue LEDs, you get white light. Alternatively, you can excite a chemical layer in a bulb with
00:45blue light to emit white light. LED lighting is more energy efficient than other types,
00:51making it a momentous change for the 1.5 billion people without access to electricity grids. If
00:59all lights were LED, global electricity usage for lighting could drop from 20 to 4%. Some
01:07LED systems are designed to adjust the light color throughout the day to align with the
01:12body's natural rhythm, offering a more comfortable lighting experience. Scientists were aware of the
01:18concept of materials made up of single atomic layers, but no one had managed to isolate one
01:24until recently. For years, researchers had been attempting to create a single layer using advanced
01:31and costly methods. However, the breakthrough came when a group of scientists used a simple
01:37and inexpensive tool, regular sticky tape, to isolate a single sheet of graphene. In 2004,
01:44a team of scientists announced the discovery of graphene, a thin layer of carbon just one
01:49atom thick. This discovery surprised the scientific community as it had been believed
01:55that materials like graphene would be too unstable to exist. Graphene quickly became the talk of the
02:01town, with new findings on its properties adding to the excitement. In recognition of their work,
02:07the scientists received the Nobel Prize in Physics in 2010. The idea that strictly
02:13two-dimensional arrangements of atoms would be unstable was long held, but recent research has
02:18shown otherwise. Graphite, which we commonly find in pencils, is made up of layers of carbon atoms
02:25arranged in a hexagonal pattern. These layers are what we refer to as graphene. Interestingly,
02:31the discovery of structures like buckyballs and nanotubes hinted that carbon could indeed
02:37form stable 2D sheets. One of the most fascinating qualities of graphene is its
02:43exceptional electrical conductivity, allowing it to carry significant currents at room temperature.
02:48Its unique properties have opened a world of possibilities in electronics and material
02:54science. Researchers are also exploring graphene's potential in fields like solar
02:59energy and battery technology. Now, the idea of touchscreens on devices has been around
03:07for a while, even showing up in science fiction movies and books. However, it took a lot of time
03:14to actually develop the technology to accurately sense and respond to finger touches on screens.
03:19Many people think Steve Jobs dreamed up the touch interface, but that's not quite true. He
03:26just introduced the technology in a way that really caught people's attention.
03:30Apple engineers have put in a lot of effort to improve the technology,
03:35adding features like scrolling without the need for physical buttons.
03:39The first touchscreen device is believed to be the work of American professor Samuel
03:44Hearst in the early 1970s. He was looking for a way to automate reading information
03:50from recorder tapes, which led to the creation of the world's first touchscreen. Over the years,
03:56touchscreen technology continued to evolve, eventually leading to the development of
04:01touchscreen smartphones and tablets. In 2002, companies like HTC and Zenark Technologies
04:08started producing devices with touchscreens, setting the stage for the popular devices we
04:14use today. These devices have found countless applications in various industries and have
04:19improved how we interact with technology. So, while Steve Jobs may not have invented
04:25the touchscreens, his contribution to making them mainstream cannot be denied.
04:29Now, for years, the concept of flying with a personal jet engine attached to your back
04:34has been a futuristic dream. However, the reality is that this dream has yet to become
04:40a mainstream reality. Despite promises of a practical jetpack hitting the market soon,
04:46there are several reasons why this technology has not, uh, taken off.
04:50First, the human body is not naturally built for flight. Without genetic modifications to
04:56create lift, individuals cannot soar like birds. This means that all the lift must come from the
05:02thrust generated by the jetpack. Next, thrust requires a significant amount of fuel, which
05:09can be expensive. Carrying more fuel for longer flights adds weight, requiring even more thrust
05:15and burning more fuel in a vicious cycle. Additionally, most jetpacks use rocket
05:22propulsion, which requires carrying both fuel and oxidizer. Jet and rocket packs are
05:27also difficult to control and can be unstable in flight. The short flight time limits the
05:34ability to reach a safe altitude for emergency situations, such as engine failure. Plus,
05:40the inefficiency of flying one person with a jetpack makes it impractical for most uses.
05:46While they may look cool, the practicality and cost-effectiveness of jetpacks have yet
05:51to be realized.
05:54The idea of using light in a precise and powerful way sounded like something straight out of
05:59a sci-fi movie until lasers were invented in the 1960s. Since then, lasers have totally
06:05changed the game in industries like medicine, fiber optics for communication, and manufacturing,
06:12where they're used with incredible precision for things like cutting and welding. Even
06:17though lasers can now come in all sorts of colors, making a white laser was a whole different
06:22story. White light is made up of a bunch of different wavelengths, unlike a single wavelength
06:27that traditional lasers produce. But instead of seeing this as a roadblock, many scientists
06:33view it as an exciting challenge. One idea for making a white laser is to combine several
06:39lasers to create a beam that looks white to us. But getting this to work without losing
06:44coherence is no easy task. Still, some researchers have succeeded in making a white laser using
06:50just one crystal, proving that there are new and creative ways to push the boundaries of
06:55optics.
06:58Back in 1903, Henry Ford's lawyer was advised against investing in Ford's automobile company.
07:04A mysterious person told him there would always be a horse and cars were just a passing fad.
07:10Well, as of 2021, almost 300 million vehicles were registered in the US alone. Take that,
07:18Mr. Anonymous Advisor! Jokes aside, at the beginning of the 20th century, people indeed
07:24didn't really welcome the whole concept of cars. Americans weren't really feeling
07:29the whole cars-in-the-city thing. But as highways, suburbs, and anti-walking laws started popping
07:35up, people started to come around to the car-centric lifestyle. This shift meant less
07:40focus on walkable communities, which is kind of sad because it affects our ability just
07:46to stroll around our neighborhoods.
07:48Now, there's a common misconception that the price of lab-grown diamonds will drastically
07:54decrease in the future. This misconception is often promoted by the mined diamond industry,
08:00which claims that lab diamond prices will eventually plummet to the level of lower-quality
08:05diamond simulants like cubic zirconia. The reality is that high-quality lab diamonds
08:11are quite rare and difficult to produce. Growing brown or industrial-grade lab diamonds is
08:16easier and more cost-effective, while growing colorless high-quality lab diamonds is a complex
08:23and expensive process. Similar to mined diamonds, there are two distinct categories of lab diamonds
08:29– high-quality and low-quality. Makes sense to me.
08:34Most lab diamonds on the market fall into the low-quality category, while high-end retailers
08:39offer access to superior-quality lab diamonds that are much harder to grow. The process
08:44of growing high-quality lab diamonds is a challenging one due to the speed limit on
08:49how fast a diamond crystal can be grown. Trying to speed up the growth process can result
08:55in diamonds with fractures, low clarity, and undesirable undertones. Shortcuts, such as
09:02adding boron during growth, can lead to low-quality lab diamonds with a blue tinge or brown color
09:08that needs to be irradiated to remove. Cutting and polishing lab-grown diamonds is also a
09:13costly and labor-intensive process, requiring the use of multi-million-dollar laser tools
09:19and highly-skilled technicians.