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Are you interested in the science behind figure skating? Elite figure skaters know physics at a visceral level in ways most of us don’t. For example, every twist, turn and leap begins with balance, which relies on keeping your center of mass aligned with a foot on the ice. But it’s not just the center of mass that matters in figure skating, the "moment of inertia" also plays a role. And for jumps, it amounts to three components: how much angular momentum you leave the ice with, how small can you make your moment of inertia in the air, and how much time you can spend in the air. Learn more about the physics of figure skating and the potential for quintuple jumps in the future.
Imperial physicists have recreated the famous double-slit experiment, showing light behaving as both a wave and particle, but in time instead of space. By firing light through a material that changes its properties in femtoseconds, the experiment reveals more about the fundamental nature of light, creating a stepping-stone to creating the ultimate materials that can minutely control light in both space and time. The experiment has implications for new technologies and analogs for studying fundamental physics phenomena like black holes.
A team of physicists from Sun Yat-sen University and the China Academy of Engineering Physics has developed a more accurate way to trace the origin of illegally trafficked radioactive materials, improving global security against dirty bombs. By analyzing spent fuel and developing linear equations, they trained an AI network to identify the sources of materials originating from six types of nuclear reactors with 91-95% accuracy.
Unlock the future of electronics with 2D materials! MIT engineers have developed a revolutionary method to fabricate tiny transistors from 2D materials like transition-metal dichalcogenides (TMDs) that conduct electricity better than silicon. The method allows chip manufacturers to grow these materials on existing silicon wafers, preserving their perfect crystalline form. Get ready to catch up to Moore's Law with next-generation electronic devices!
Have you ever wondered how touchscreens work? The answer is more fascinating than you might think. Touchscreens use capacitance or resistance to detect touch, but how does this work exactly? Conductive materials allow electrons to flow around atoms, forming an electric current that is used to complete the circuit. Capacitive touchscreens are generally easier to use because they interact directly with your finger, while resistive touchscreens require force to detect touch. When you touch a screen, your finger acts like a third electrical line, interacting with the existing electric field, which induces a weak electric current that travels through your finger and back into the phone. Understanding how touchscreens work is not only intellectually interesting, but it also has practical applications. Knowing how to troubleshoot touchscreen issues or how certain objects can activate the screen can come in handy. So next time you use your phone, think about the technology behind it and the wonders of conductivity and capacitance.
Have you ever been amazed by the intricate designs found in nature, such as spider webs and butterfly wings? These natural wonders have served as a source of inspiration for some of the most groundbreaking inventions in human history. From airplane wings to bullet trains, the principles of nature are all around us, and today we will explore some of these incredible innovations and the amazing natural phenomena that inspired them. For example, the lotus leaf displays a natural phenomenon called the Lotus Effect. After a rain, water droplets just roll right off the leaf. Upon more intensive research, scientists found out that the lotus leaves' self-cleaning properties are a result of ultra hydrophobicity, inspiring many inventions that repel water, such as self-cleaning windows and waterproof clothing. In addition, gecko feet have inspired researchers to develop new adhesives that could revolutionize the way we build things. The principles of biomimicry, where scientists study the natural world to inspire new technology, have been used to design high-speed trains, such as the kingfisher bird's beak inspiring the train's noise-reducing and efficiency-increasing design. Furthermore, researchers studying the abalone shell and other natural materials have found inspiration to create stronger and more durable materials using nanotechnology. Leading academics such as Janine Benyus, author of Biomimicry: Innovation Inspired by Nature, and Dr. Joanna Aizenberg, a leading researcher in the field of biomimetics who has studied the Lotus Effect extensively, have contributed to the research and development of these innovations. The natural world is full of wonders waiting to be explored. By studying the principles of nature, we can inspire new innovations that could change the world. So go out there and discover the secrets of nature for yourself!
Are you a fan of s'mores? Do you want to learn the science behind making the perfect gooey treat? In a quest for perfection, a writer turned to physics and thermodynamics to determine the ideal s'more technique. By considering the heat transfer from marshmallow to chocolate, the writer computed the specific heat and latent heat of melting of both ingredients, and conducted experiments to determine the optimal temperature for the marshmallow. The results? A marshmallow heated to 160°F produces the perfect s'more! This delicious experiment shows that science can be fun and tasty too.
Are you fascinated by the science behind materials? Do you enjoy exploring and testing the properties of different materials? If so, a career in Materials Engineering might be the perfect fit for you! As a Materials Engineer, you will work to develop and improve the materials used in a wide range of products, from electronics to construction materials. You will use your knowledge of chemistry and physics to analyze the properties of different materials and determine how they can be optimized for specific applications. One exciting aspect of this field is the potential for innovation. For example, Materials Engineers have been instrumental in the development of new materials like graphene, which has the potential to revolutionize industries such as electronics and aerospace. Typical duties in this field include conducting experiments and tests to analyze the properties of materials, designing and developing new materials, and collaborating with other engineers and scientists to improve existing products. There are also many areas of specialization within Materials Engineering, such as biomaterials, nanomaterials, and metallurgy. To become a Materials Engineer, you will typically need a bachelor's degree in Materials Science or a related field. Popular undergraduate programs and majors include Materials Science and Engineering, Chemical Engineering, and Physics. Helpful personal attributes for success in this field include strong analytical skills, attention to detail, and a passion for problem-solving. You should also have excellent communication skills, as you will often be working closely with teams of other engineers and scientists. Job prospects for Materials Engineers are strong, with the Bureau of Labor Statistics projecting a 2% increase in employment from 2019 to 2029. There are many potential employers in both the public and private sectors, including companies like Apple, Boeing, and NASA. In summary, a career in Materials Engineering offers the opportunity to work on cutting-edge projects, develop new and innovative materials, and contribute to a wide range of industries. If you have a passion for science and a desire to make a real impact, this might be the perfect career for you!
Have you ever wondered what lies beyond the pages of a closed book? Imagine being able to see the words on the pages without ever opening the cover. This is the exciting concept behind the technology developed by a group at MIT. Using terahertz waves, they can now read through closed books and uncover the hidden information inside. To do this, they had to overcome a series of challenges including the need for a radiation source that can penetrate the paper, the ability to distinguish between different pages, and the recognition of characters that are partially hidden. Learning about these academic concepts not only expands your knowledge of science and technology but also opens up new possibilities for studying antique documents and other important materials. Take the first step towards exploring the unseen world and discover the thrill of uncovering hidden information.
Chocolate is not just an art, it's also a science. Discover how chocolatiers use the complex physics of chocolate to create the perfect texture, taste, and appearance. Learn about the six-phase polymorphic crystal structure of chocolate and how chocolatiers manipulate it through tempering. Explore the similarities between chocolate and carbon and how chocolatiers use their knowledge of physics to regulate the spread of flavor in their creations. Join master chocolatier Richard Tango-Lowy and physicist Joshua Erlich on a journey through the fascinating world of chocolate physics.
Have you ever wondered why time only moves forward, and not backwards? Scientists used to be stumped by this question until they discovered the second law of thermodynamics, which explains why things happen in the order that they do. This law tells us that entropy, or the level of disorder, always increases in a system. For example, a cup that smashes on the floor will never reassemble itself because that would decrease entropy, which goes against the second law. Understanding this law can help us grasp why things happen in a certain order and why time only moves forward. Learning about thermodynamics can also help us understand how things work, from steam engines to the universe itself. So, if you're curious about the world around you and want to explore the fascinating concepts of entropy and thermodynamics, dive in and discover the wonders of science!
Have you ever heard of the field of nanotechnology? It's a rapidly growing and exciting field that is revolutionizing the way we live, work, and play. Nanotechnology is the study and manipulation of materials on a molecular or atomic scale, and it has the potential to transform everything from medicine to electronics. Imagine creating tiny robots that can swim through your bloodstream and target cancer cells, or developing ultra-light and ultra-strong materials for airplanes and cars. These are just a few examples of the amazing possibilities that nanotechnology offers. As a nanotechnologist, you would work with these tiny materials to create new products and technologies. You might design and develop new materials, work on improving existing ones, or create entirely new devices and systems. You could work in a variety of fields, from medicine to electronics to energy. Typical duties in nanotechnology might include conducting experiments, analyzing data, designing and building prototypes, and collaborating with other scientists and engineers. There are also many areas of specialization within nanotechnology, such as nanoelectronics, nanobiotechnology, and nanomaterials. To get started in this field, you'll need a strong background in science and engineering. Many nanotechnologists have degrees in materials science, chemistry, physics, or electrical engineering. Some popular undergraduate programs and majors include nanotechnology engineering, materials science and engineering, and chemical engineering. In addition to technical skills, there are certain personal attributes that can be helpful in this field. These might include a strong attention to detail, excellent problem-solving skills, and a creative and innovative mindset. The job prospects for nanotechnologists are excellent, with many exciting opportunities available in both the public and private sectors. Some notable employers in this field include IBM, Intel, and Samsung, as well as government agencies such as NASA and the National Institutes of Health. So if you're looking for a career that is both challenging and rewarding, consider exploring the field of nanotechnology. Who knows what amazing discoveries and inventions you might be a part of in the future!
Researchers at MIT and other institutions have found a way to increase the emission of light from the interaction between photons and electrons by a hundredfold, with potential applications in modern technologies and scientific research.
Glass is a material that we use every day, but have you ever wondered how it works? Glass is made from silicon dioxide, which is heated until it becomes a flowing liquid. As it cools, the molecules lose energy and become an amorphous solid, allowing light to pass through without being scattered. The subatomic level of glass is what makes it transparent, as the electrons in glass are spaced far enough apart that visible light can't provide enough energy for them to jump between them. This unique property has made glass an essential material for many uses, from windows to lenses. Understanding the science behind glass can help you appreciate the importance of this material in modern civilization.
Quantum computing is no longer a futuristic concept as researchers from MIT and other institutions have made a major breakthrough in quantum technology. They have developed a new superconducting parametric amplifier that achieves noise squeezing over a broad frequency bandwidth of up to 1.75 gigahertz while maintaining a high degree of squeezing, leading to faster and more accurate quantum systems. This breakthrough has significant implications for multiqubit systems and other metrological applications that demand extreme precision.
The future of resource extraction lies in space exploration. Asteroids, leftovers from the formation of the planet 4.5 billion years ago, contain rare and precious materials such as platinum, iron, and nickel. The mining industry on Earth is harmful to the environment and people, but space mining could provide a clean and sustainable alternative. Cheaper space travel is necessary to make asteroid mining profitable, and scientists and economists are working on solutions such as electric spaceships. Once a stable asteroid is secured, space mining and processing equipment can extract valuable materials through a process that uses giant mirrors to focus sunlight and heat up asteroid rock. Even a small percentage of a single asteroid's mass in precious metals could be worth billions of dollars. The benefits of space exploration and asteroid mining are vast, and the possibilities for discovery and innovation are endless.
Learning about lift and how planes fly may seem daunting, but it's a fascinating and important academic concept to explore. The force of lift is generated by the wings of a plane, which creates a difference in pressure above and below the wing. This pressure difference results in the upwards force of lift, allowing planes to take off and fly. While some explanations of lift have been debunked, the physics of fluid in motion remains constant. Understanding lift not only satisfies curiosity but also has practical applications in the field of aeronautics. By exploring this complex process, students can gain a deeper understanding of the world around them and potentially even contribute to advancements in the field.
In our modern world, we are surrounded by electronic devices, from smartphones to laptops and beyond. But have you ever wondered about the foundation of these devices? Enter the silicon wafer, the building block of modern electronics. In this write-up, we'll explore the fascinating world of silicon wafers, from their origins to their use in modern technology. Silicon wafers are thin, circular slices of silicon that are used to create microchips, the tiny electronic components that power our devices. These wafers are made by growing a crystal of silicon and then slicing it into thin wafers. This process is known as "wafer fabrication," and it is a complex process that requires precision and expertise. One of the key figures in the development of silicon wafers is Gordon Moore, the co-founder of Intel. In 1965, Moore proposed what is now known as "Moore's Law," which states that the number of transistors that can fit on a microchip will double every 18-24 months. This law has held true for over 50 years and has been a driving force behind the incredible progress in electronics technology. Another influential figure is Andrew Grove, the former CEO of Intel. Grove was instrumental in making Intel a leader in the semiconductor industry, and he was a strong advocate for the importance of research and development in the field. Silicon wafers are used in a vast array of electronic devices, from smartphones and laptops to cars and even spacecraft. In fact, NASA's Mars rovers are powered by microchips built using silicon wafers. Without silicon wafers, our modern world as we know it would not be possible. Silicon wafers may seem like a small, insignificant component, but they are the foundation of the modern electronics industry. Learning about the origins and applications of silicon wafers can inspire students to explore the exciting world of electronics technology and pursue their interests in science and engineering.
Join physicist Brian Greene on a journey to unravel the mysteries of the universe in "The Elegant Universe." Delve into the world of string theory, where the fabric of space is torn and repaired, and everything in the universe is generated by microscopically tiny loops of energy. Greene masterfully uses metaphor and analogy to make complex concepts accessible and entertaining, bringing us closer to understanding the grand physical principle behind the universe. Recommended for physics enthusiasts, students of astrophysics and cosmology, and anyone curious about the fundamental nature of the universe. The book provides a fascinating exploration of string theory, a theoretical framework that unifies the laws of physics and promises to be the key to the elusive theory of everything. The Elegant Universe offers a refreshingly clear and engaging account of twentieth-century physics' search for a unified theory, making it an excellent resource for anyone interested in the history and philosophy of science. The book's use of metaphor and analogy also makes it accessible to readers with limited scientific background knowledge.
Have you ever wondered what causes the weather to change? Do you find yourself glued to the TV or your weather app during a storm? If so, a career in meteorology might be right up your alley. Meteorology is the study of the Earth's atmosphere and the weather patterns that occur within it. Meteorologists use a variety of tools and techniques to collect data on the weather, such as weather balloons, satellites, and radar. They then use this data to create forecasts and models that help us understand and predict weather patterns. As a meteorologist, you could work in a variety of settings, from TV stations to government agencies to research institutions. Some meteorologists specialize in a particular area, such as severe weather or climate change, while others work in related fields like air quality or oceanography. To become a meteorologist, you typically need at least a bachelor's degree in meteorology or a related field like atmospheric science or physics. Some popular undergraduate programs include Penn State's Meteorology program, the Atmospheric Science program at the University of Washington, or the Meteorology and Climatology program at the University of Oklahoma. In addition to a strong educational background, there are several personal attributes that can be helpful in a career in meteorology. These include a strong attention to detail, good communication skills, and the ability to work well under pressure. Job prospects for meteorologists are generally good, with a projected growth rate of 9% over the next decade. Some notable employers in the field include the National Oceanic and Atmospheric Administration (NOAA), the National Weather Service, and private companies like AccuWeather and The Weather Company. So if you have a passion for weather and a desire to understand the forces that shape our planet, a career in meteorology might be just what you're looking for.
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