Article
More like this
Teflon, a material that doesn't stick to anything, was stumbled upon accidentally in 1938 by a chemist named Roy Plunkett. Teflon's properties make it perfect for things that need to be slippery, chemical-resistant, or waterproof, which means it has a lot of applications. It can be found all over the place, from raincoats to industrial ball bearings to artificial joints. The incredible properties of PTFE, the chemical name for Teflon, come from its molecular structure. It's a polymer, meaning it's made of long chains of repeating units of atoms strung together. PTFE has tight carbon-fluorine bonds that ignore the normal, intermolecular forces that help substances stick to each other. Even the famously adhesive feet of geckos usually can't get a grip on it. Learning about the properties of materials like Teflon can inspire independent exploration of science and engineering, which can lead to exciting career opportunities in fields like materials science and chemical engineering.
Researchers have powered a microprocessor for a year using blue-green algae and ambient light! This system, comparable in size to an AA battery, has the potential to be a reliable and renewable way to power small devices. The growing Internet of Things needs power, and this system generates energy instead of simply storing it like batteries. The algae system is made of common and recyclable materials, making it easily replicable.
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.
Are you interested in exploring the world of artificial intelligence (AI) and its impact on our daily lives? Look no further than Stanford University's latest research on energy-efficient memory storage for AI training. In a recent breakthrough, researchers at Stanford found a material that could revolutionize the way we store data using electron spin directions, resulting in faster and more efficient processing. This new memory storage method, known as spin orbit torque magnetoresistive random access memory (SOT-MRAM), could enable AI training on devices like your phone or smartwatch. Check out the full article in Nature Materials to learn more!
Scientists at A\*STAR's IMRE have successfully upcycled PET plastic waste into polymer electrolytes, which are key components for safer LiBs. This paves the way for a future powered by more sustainable energy, creating a circular economy while combating the mounting plastic waste issue. The team aims to advance the technology for upcycling waste plastics on a larger scale to create components for eco-friendly batteries.
Can we develop a mechanical method to detect explosives as effectively as bomb-sniffing dogs? Researchers from MIT Lincoln Laboratory are using a mass spectrometer to measure explosive vapors and understand the requirements for creating an operational explosive detection system that could work in tandem with the canine fleet to improve current airport security systems. The team's research is supported by the Department of Homeland Security's Detection Canine Program and the Next-Generation Explosives Trace Detection program. This innovative research could lead to a faster and more streamlined passenger experience and support the development of technology that remains resilient against evolving security threats
Batteries are a crucial part of our modern lives, powering everything from our smartphones to our cars. But the production and disposal of batteries have significant environmental impacts, from toxic chemicals and heavy metals to greenhouse gas emissions. Fortunately, there are sustainable options and alternatives to batteries that can help mitigate these negative effects. One such option is kinetic energy, which converts motion into electricity. For example, the piezoelectric effect harnesses energy from pressure, while the triboelectric effect converts friction into electricity. Another alternative to batteries is supercapacitors, which store energy in an electric field rather than a chemical reaction. They charge and discharge quickly and have a longer lifespan than traditional batteries. These sustainable options and alternatives to batteries are being researched and developed by leading academics in the field of materials science and engineering. Dr. Jennifer Lewis, a professor of biologically inspired engineering at Harvard University, is leading a team that is working on creating 3D-printed energy storage devices using a hydrogel-based ink. Meanwhile, Dr. Yi Cui at Stanford University is researching how to improve the energy density and safety of solid-state batteries. By exploring academic topics like materials science and engineering, students can learn about the properties of different materials and how they can be manipulated to create sustainable technologies. You can also learn about the environmental impact of technology and how sustainable alternatives can mitigate these effects. In conclusion, sustainable alternatives to batteries offer exciting opportunities for innovation and environmental sustainability. By exploring academic topics related to these technologies, high school students can gain a deeper understanding of the scientific principles behind sustainable energy and contribute to a more sustainable future.
Unlock the secrets of microscopic processes with microrobots! Researchers at the University of Pennsylvania and University of Ljubljana are using physical intelligence to manipulate colloidal fluids of nematic liquid crystals with magnetically controlled microrobots. This groundbreaking work, published in Advanced Functional Materials, lays the foundation for understanding small-scale interactions and has exciting potential applications in the optical device industry and beyond.
Are you interested in using your creativity and problem-solving skills to make a positive impact on the world? Then a career in chemical engineering might be right up your alley! Chemical engineering is a field that combines knowledge of chemistry, physics, and mathematics to design and develop new products and processes. As a chemical engineer, you could work in a variety of industries, including pharmaceuticals, energy, food and beverage, and more. For example, you might work on developing new medicines to treat diseases, or on designing more efficient and sustainable ways to produce energy. One exciting aspect of chemical engineering is the potential for innovation and discovery. For example, chemical engineers have been instrumental in developing new materials like graphene, which has the potential to revolutionize industries from electronics to transportation. In terms of day-to-day duties, chemical engineers might be involved in everything from designing experiments and analyzing data to overseeing production processes and troubleshooting problems that arise. There are also many areas of specialization within the field, such as materials science, process design, and environmental engineering. To become a chemical engineer, you'll typically need to earn a bachelor's degree in chemical engineering or a related field. Some popular undergraduate programs include the chemical engineering programs at MIT, UC Berkeley, and the University of Texas at Austin. In addition to technical knowledge, there are a few personal attributes that can be helpful in a career in chemical engineering. These include strong problem-solving skills, attention to detail, and the ability to communicate complex ideas clearly and effectively. As for job prospects, chemical engineering is a field with plenty of opportunities for growth and advancement. Some notable employers include companies like Procter & Gamble, ExxonMobil, and DuPont, as well as government agencies like the Environmental Protection Agency and the Department of Energy. In conclusion, if you're interested in using your scientific knowledge to make a difference in the world, a career in chemical engineering might be the perfect fit for you. With plenty of opportunities for innovation and growth, this field offers the chance to make a real impact on society and the environment. So why not explore this exciting career path today?
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!
Plastics have become ubiquitous in our daily lives, but few of us know the history behind this versatile material. The first plastic was created in 1863 by an American named John Wesley Hyatt, who invented celluloid, made from cellulose found in wood and straw. This discovery led to a cascade of new plastics, including bakelite, polystyrene, polyvinyl chloride, acrylics, and nylon. Plastics have replaced other materials like wood, glass, and fabric in furniture, clothing, and packaging. While plastics have brought convenience and cost-effectiveness, they have also created staggering environmental problems. Many plastics are made of nonrenewable resources, and plastic packaging was designed to be single-use, but some plastics take centuries to decompose, creating a huge buildup of waste. By learning about plastics, students can understand how science and innovation have shaped our world, and they can explore ways to address the environmental problems associated with plastic use.
The periodic table may seem like just another table of information, but it is so much more. It is a tool that scientists use to understand the world around us. By organizing all the chemical elements in order by atomic number, the periodic table creates a recurring pattern of properties called the periodic law. This allows us to predict the behavior of elements we haven't even discovered yet! Through the history of the periodic table, we can see how scientific discoveries and technological advancements build upon one another. Learning about the periodic table not only expands your scientific knowledge but also helps you develop analytical and critical thinking skills. By exploring this fascinating topic, you may even be inspired to pursue a career in science and help advance our understanding of the world.
Discover the secrets behind the remarkable hydrodynamic performance of shark skin and how it's inspiring the design of bioinspired robots and materials!
Are you aware that over 2 billion people globally drink water contaminated with disease-causing microbes? Stanford University and SLAC National Accelerator Laboratory have developed a low-cost, recyclable powder that can kill thousands of waterborne bacteria per second when exposed to ordinary sunlight. This discovery could be a significant breakthrough for the nearly 30 percent of the world's population without access to safe drinking water. The results of their study are published in Nature Water.
Get an inside look into the physics of freestyle skiing and snowboarding! Discover how professional skiers create lift-off force and control their rotational momentum mid-air to execute their incredible feats of manoeuvrability. Explore the challenges of incorporating twisting and learn about the crucial role of posture in executing aerial tricks. Join us in uncovering the secrets of landing safely after these jaw-dropping stunts.
"Rocks are becoming rocks again!" says chemist Peter Psarras from the Clean Energy Conversions Lab (CECL) at the University of Pennsylvania. Psarras and his team are turning waste from industrial mines into magnesium carbonate through a carbon-neutral and inexpensive process, with the goal of storing CO2. With five partner mines, the CECL lab, funded by the Kleinman Center for Energy Policy and the School of Engineering and Applied Science, is exploring the environmental potential of mine tailings and determining the scalability of the carbonation process. Join Psarras and the CECL in their mission to tap into the "moved mountain" of waste and be inspired by their cutting-edge technology.
This story of Harry Coover, a chemist during World War II, highlights the importance of persistence and creative thinking in academic pursuits. Coover and his team encountered challenges in their research, but instead of giving up, they looked for alternative uses for the materials they were working with. This led to the creation of super glue, which has saved countless lives in medical settings. This story shows that academic curiosity and perseverance can lead to unexpected discoveries with practical applications. By exploring academic topics through reading, reflection, and self-directed projects, students can develop the skills needed to tackle complex problems and make meaningful contributions to society.
What if we could capture carbon emissions at low cost, using a common polymer found in dinnerware and utensils? Researchers at UC Berkeley and Stanford have developed a method for using melamine to capture carbon dioxide from smokestacks and vehicle exhaust, with efficiency comparable to more expensive materials. This breakthrough could help achieve net-zero carbon emissions by 2050, and the researchers are exploring ways to improve the carbon capture efficiency even further.
Electricity is a fundamental part of modern life, but could too much of it be harmful? Understanding the movement of electric charges and resulting electromagnetic radiation is key to answering this question. While some radiation, like UV light and X-rays, can be dangerous, most of the radiation emitted by human technology, such as mobile phones and household appliances, is harmless. However, some studies have suggested possible long-term harm from constant exposure to weak electromagnetic radiation. The debate surrounding this issue highlights the importance of reliable scientific studies and responsible communication of findings. Learning about the effects of electromagnetic radiation can help students make informed decisions about their technology use and contribute to ongoing scientific research.
The world's shift towards electric vehicles to reduce greenhouse gas emissions will require a huge demand for critical metals like lithium, nickel, cobalt, manganese, and platinum. This demand will have economic and supply-chain consequences, according to new research from Cornell University. Discover how countries can manage this demand and promote a circular economy for critical metals.
Activities
Academic Extensions
Thought Experiments