Podcasts about science: physical science

The International System of Units (the SI), the modern metric system, has recently undergone its most revolutionary change since its origins during the French Revolution. The nature of this revolution is that all of the base units of the SI are now defined by fixing values of natural constants. Our measurement system is now, both philosophically and practically, strongly quantum. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about why this reform was needed and how it is done. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37728]

The International System of Units (the SI), the modern metric system, has recently undergone its most revolutionary change since its origins during the French Revolution. The nature of this revolution is that all of the base units of the SI are now defined by fixing values of natural constants. Our measurement system is now, both philosophically and practically, strongly quantum. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about why this reform was needed and how it is done. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37728]

The International System of Units (the SI), the modern metric system, has recently undergone its most revolutionary change since its origins during the French Revolution. The nature of this revolution is that all of the base units of the SI are now defined by fixing values of natural constants. Our measurement system is now, both philosophically and practically, strongly quantum. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about why this reform was needed and how it is done. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37728]

The International System of Units (the SI), the modern metric system, has recently undergone its most revolutionary change since its origins during the French Revolution. The nature of this revolution is that all of the base units of the SI are now defined by fixing values of natural constants. Our measurement system is now, both philosophically and practically, strongly quantum. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about why this reform was needed and how it is done. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37728]

The International System of Units (the SI), the modern metric system, has recently undergone its most revolutionary change since its origins during the French Revolution. The nature of this revolution is that all of the base units of the SI are now defined by fixing values of natural constants. Our measurement system is now, both philosophically and practically, strongly quantum. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about why this reform was needed and how it is done. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37728]

The International System of Units (the SI), the modern metric system, has recently undergone its most revolutionary change since its origins during the French Revolution. The nature of this revolution is that all of the base units of the SI are now defined by fixing values of natural constants. Our measurement system is now, both philosophically and practically, strongly quantum. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about why this reform was needed and how it is done. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37728]

At the beginning of the 20th century, Einstein changed the way we think about time. Now, early in the 21st century, the measurement of time is being revolutionized by the ability to cool a gas of atoms to temperatures millions of times lower than any naturally occurring temperature in the universe. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about laser cooling and ultracold atoms and how they relate to time. Atomic clocks, the best timekeepers ever made, are one of the scientific and technological wonders of modern life. Such super-accurate clocks are essential to industry, commerce, and science; they are the heart of the Global Positioning System (GPS), which guides cars, airplanes, and hikers to their destinations. Today, the best primary atomic clocks use ultracold atoms. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37727]

At the beginning of the 20th century, Einstein changed the way we think about time. Now, early in the 21st century, the measurement of time is being revolutionized by the ability to cool a gas of atoms to temperatures millions of times lower than any naturally occurring temperature in the universe. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about laser cooling and ultracold atoms they relate to time. Atomic clocks, the best timekeepers ever made, are one of the scientific and technological wonders of modern life. Such super-accurate clocks are essential to industry, commerce, and science; they are the heart of the Global Positioning System (GPS), which guides cars, airplanes, and hikers to their destinations. Today, the best primary atomic clocks use ultracold atoms. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37727]

At the beginning of the 20th century, Einstein changed the way we think about time. Now, early in the 21st century, the measurement of time is being revolutionized by the ability to cool a gas of atoms to temperatures millions of times lower than any naturally occurring temperature in the universe. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about laser cooling and ultracold atoms they relate to time. Atomic clocks, the best timekeepers ever made, are one of the scientific and technological wonders of modern life. Such super-accurate clocks are essential to industry, commerce, and science; they are the heart of the Global Positioning System (GPS), which guides cars, airplanes, and hikers to their destinations. Today, the best primary atomic clocks use ultracold atoms. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37727]

At the beginning of the 20th century, Einstein changed the way we think about time. Now, early in the 21st century, the measurement of time is being revolutionized by the ability to cool a gas of atoms to temperatures millions of times lower than any naturally occurring temperature in the universe. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about laser cooling and ultracold atoms and how they relate to time. Atomic clocks, the best timekeepers ever made, are one of the scientific and technological wonders of modern life. Such super-accurate clocks are essential to industry, commerce, and science; they are the heart of the Global Positioning System (GPS), which guides cars, airplanes, and hikers to their destinations. Today, the best primary atomic clocks use ultracold atoms. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37727]

At the beginning of the 20th century, Einstein changed the way we think about time. Now, early in the 21st century, the measurement of time is being revolutionized by the ability to cool a gas of atoms to temperatures millions of times lower than any naturally occurring temperature in the universe. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about laser cooling and ultracold atoms and how they relate to time. Atomic clocks, the best timekeepers ever made, are one of the scientific and technological wonders of modern life. Such super-accurate clocks are essential to industry, commerce, and science; they are the heart of the Global Positioning System (GPS), which guides cars, airplanes, and hikers to their destinations. Today, the best primary atomic clocks use ultracold atoms. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37727]

At the beginning of the 20th century, Einstein changed the way we think about time. Now, early in the 21st century, the measurement of time is being revolutionized by the ability to cool a gas of atoms to temperatures millions of times lower than any naturally occurring temperature in the universe. Nobel Prize recipient William Phillips, Ph.D., a Distinguished University and College Park Professor of Physics at the University of Maryland, talks about laser cooling and ultracold atoms and how they relate to time. Atomic clocks, the best timekeepers ever made, are one of the scientific and technological wonders of modern life. Such super-accurate clocks are essential to industry, commerce, and science; they are the heart of the Global Positioning System (GPS), which guides cars, airplanes, and hikers to their destinations. Today, the best primary atomic clocks use ultracold atoms. Series: "UC Berkeley Graduate Lectures" [Science] [Show ID: 37727]

The burning candle water experiment is something you can do at home. See what happens when the candle burns out. Think about what you know about air pressure and how that explains what you see. You created an area of low pressure! Once the candle runs out of oxygen, the candle burns out and the air inside the glass cools down which lowers the air pressure inside the glass. Now there is a difference between the air pressure outside and inside the glass. The high pressure outside allows the water to be pushed into the lower pressure inside the glass and the water rises inside the glass. Series: "STEAM Channel" [Education] [Show ID: 36147]

The burning candle water experiment is something you can do at home. See what happens when the candle burns out. Think about what you know about air pressure and how that explains what you see. You created an area of low pressure! Once the candle runs out of oxygen, the candle burns out and the air inside the glass cools down which lowers the air pressure inside the glass. Now there is a difference between the air pressure outside and inside the glass. The high pressure outside allows the water to be pushed into the lower pressure inside the glass and the water rises inside the glass. Series: "STEAM Channel" [Education] [Show ID: 36147]

The burning candle water experiment is something you can do at home. See what happens when the candle burns out. Think about what you know about air pressure and how that explains what you see. You created an area of low pressure! Once the candle runs out of oxygen, the candle burns out and the air inside the glass cools down which lowers the air pressure inside the glass. Now there is a difference between the air pressure outside and inside the glass. The high pressure outside allows the water to be pushed into the lower pressure inside the glass and the water rises inside the glass. Series: "STEAM Channel" [Education] [Show ID: 36147]

Ram Seshadri argues that energy efficiency can be as important to our future as renewable energy. LED lights are extremely efficient. In this talk he explores how white light emission from an LED lamp works and how researchers think about materials to understand their uses. Series: "GRIT Talks" [Show ID: 35268]

Ram Seshadri argues that energy efficiency can be as important to our future as renewable energy. LED lights are extremely efficient. In this talk he explores how white light emission from an LED lamp works and how researchers think about materials to understand their uses. Series: "GRIT Talks" [Show ID: 35268]

Ram Seshadri argues that energy efficiency can be as important to our future as renewable energy. LED lights are extremely efficient. In this talk he explores how white light emission from an LED lamp works and how researchers think about materials to understand their uses. Series: "GRIT Talks" [Show ID: 35268]

Ram Seshadri argues that energy efficiency can be as important to our future as renewable energy. LED lights are extremely efficient. In this talk he explores how white light emission from an LED lamp works and how researchers think about materials to understand their uses. Series: "GRIT Talks" [Show ID: 35268]

Metals are vital to life functions. We have iron zinc and copper in us – but in the ocean is different. We know that organism evolve against the chemical constraints of their environments and Allison Butler looks at what kind of metalloenzymes are present in marine organisms. Series: "Women in Science" [Show ID: 35266]

Metals are vital to life functions. We have iron zinc and copper in us – but in the ocean is different. We know that organism evolve against the chemical constraints of their environments and Allison Butler looks at what kind of metalloenzymes are present in marine organisms. Series: "Women in Science" [Show ID: 35266]

Metals are vital to life functions. We have iron zinc and copper in us – but in the ocean is different. We know that organism evolve against the chemical constraints of their environments and Allison Butler looks at what kind of metalloenzymes are present in marine organisms. Series: "Women in Science" [Show ID: 35266]

Metals are vital to life functions. We have iron zinc and copper in us – but in the ocean is different. We know that organism evolve against the chemical constraints of their environments and Allison Butler looks at what kind of metalloenzymes are present in marine organisms. Series: "Women in Science" [Show ID: 35266]

Metals are vital to life functions. We have iron zinc and copper in us – but in the ocean is different. We know that organism evolve against the chemical constraints of their environments and Allison Butler looks at what kind of metalloenzymes are present in marine organisms. Series: "Women in Science" [Show ID: 35266]

Metals are vital to life functions. We have iron zinc and copper in us – but in the ocean is different. We know that organism evolve against the chemical constraints of their environments and Allison Butler looks at what kind of metalloenzymes are present in marine organisms. Series: "Women in Science" [Show ID: 35266]

Stochasticity (randomness) is ubiquitous in biological systems. Linda Petzold explores some of the ways in which it arises and is used to advantage by biological systems, at a wide range of scales. Petzold is a professor in the UCSB Departments of Mechanical Engineering and Computer Science. Series: "Women in Science" [Show ID: 35173]

Stochasticity (randomness) is ubiquitous in biological systems. Linda Petzold explores some of the ways in which it arises and is used to advantage by biological systems, at a wide range of scales. Petzold is a professor in the UCSB Departments of Mechanical Engineering and Computer Science. Series: "Women in Science" [Show ID: 35173]

Stochasticity (randomness) is ubiquitous in biological systems. Linda Petzold explores some of the ways in which it arises and is used to advantage by biological systems, at a wide range of scales. Petzold is a professor in the UCSB Departments of Mechanical Engineering and Computer Science. Series: "Women in Science" [Show ID: 35173]

Stochasticity (randomness) is ubiquitous in biological systems. Linda Petzold explores some of the ways in which it arises and is used to advantage by biological systems, at a wide range of scales. Petzold is a professor in the UCSB Departments of Mechanical Engineering and Computer Science. Series: "Women in Science" [Show ID: 35173]

Stochasticity (randomness) is ubiquitous in biological systems. Linda Petzold explores some of the ways in which it arises and is used to advantage by biological systems, at a wide range of scales. Petzold is a professor in the UCSB Departments of Mechanical Engineering and Computer Science. Series: "Women in Science" [Show ID: 35173]

Our planet is experiencing worldwide growth in energy consumption and CO2 emission and is experiencing temperature rise and climate change at an accelerating rate. This video introduces the Institute for Energy Efficiency at UC Santa Barbara and describes a path to reducing our energy consumption and CO2 emission. In his talk, John Bowers, Director of the Institute of Energy Efficiency and Professor of Electrical and Computer Engineering and Materials, discusses the evolution of photonics and what the future holds for more efficient, higher capacity data centers, which are important for machine learning and data processing. Series: "Institute for Energy Efficiency" [Show ID: 35159]

Our planet is experiencing worldwide growth in energy consumption and CO2 emission and is experiencing temperature rise and climate change at an accelerating rate. This video introduces the Institute for Energy Efficiency at UC Santa Barbara and describes a path to reducing our energy consumption and CO2 emission. In his talk, John Bowers, Director of the Institute of Energy Efficiency and Professor of Electrical and Computer Engineering and Materials, discusses the evolution of photonics and what the future holds for more efficient, higher capacity data centers, which are important for machine learning and data processing. Series: "Institute for Energy Efficiency" [Show ID: 35159]

Our planet is experiencing worldwide growth in energy consumption and CO2 emission and is experiencing temperature rise and climate change at an accelerating rate. This video introduces the Institute for Energy Efficiency at UC Santa Barbara and describes a path to reducing our energy consumption and CO2 emission. In his talk, John Bowers, Director of the Institute of Energy Efficiency and Professor of Electrical and Computer Engineering and Materials, discusses the evolution of photonics and what the future holds for more efficient, higher capacity data centers, which are important for machine learning and data processing. Series: "Institute for Energy Efficiency" [Show ID: 35159]

Our planet is experiencing worldwide growth in energy consumption and CO2 emission and is experiencing temperature rise and climate change at an accelerating rate. This video introduces the Institute for Energy Efficiency at UC Santa Barbara and describes a path to reducing our energy consumption and CO2 emission. In his talk, John Bowers, Director of the Institute of Energy Efficiency and Professor of Electrical and Computer Engineering and Materials, discusses the evolution of photonics and what the future holds for more efficient, higher capacity data centers, which are important for machine learning and data processing. Series: "Institute for Energy Efficiency" [Show ID: 35159]

Polymers, known colloquially as plastics, abound in the world around us due to a host of useful properties. In this talk, Christopher Bates (UCSB Materials and Chemical Engineering Departments) discusses a fascinating subset of these materials known as block copolymers, which naturally self-assemble into intricate, nanometer-sized patterns. Bates' lab provides a look into the natural universe through the lens of chemistry and materials science. Series: "GRIT Talks" [Science] [Show ID: 34029]

Polymers, known colloquially as plastics, abound in the world around us due to a host of useful properties. In this talk, Christopher Bates (UCSB Materials and Chemical Engineering Departments) discusses a fascinating subset of these materials known as block copolymers, which naturally self-assemble into intricate, nanometer-sized patterns. Bates' lab provides a look into the natural universe through the lens of chemistry and materials science. Series: "GRIT Talks" [Science] [Show ID: 34029]

Proteins are nature’s machines, performing tasks from transforming sunlight into useable energy to binding oxygen for transport through the body. These functions depend on structural arrangement of atoms within the protein, which was, until recently, only possible to measure statistically, in easily crystallized samples via conventional X-ray diffraction. In the past decade, X-ray Free Electron Lasers (XFELs), a new type of X-ray source, have begun to come online. Using ultra-bright, ultrafast X-ray pulses of the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory, this technology allows us to measure not only static pictures of protein structure but to record “molecular movies” of proteins in action. Series: "Lawrence Livermore National Lab Science on Saturday" [Science] [Show ID: 33432]

Proteins are nature’s machines, performing tasks from transforming sunlight into useable energy to binding oxygen for transport through the body. These functions depend on structural arrangement of atoms within the protein, which was, until recently, only possible to measure statistically, in easily crystallized samples via conventional X-ray diffraction. In the past decade, X-ray Free Electron Lasers (XFELs), a new type of X-ray source, have begun to come online. Using ultra-bright, ultrafast X-ray pulses of the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory, this technology allows us to measure not only static pictures of protein structure but to record “molecular movies” of proteins in action. Series: "Lawrence Livermore National Lab Science on Saturday" [Science] [Show ID: 33432]

Proteins are nature’s machines, performing tasks from transforming sunlight into useable energy to binding oxygen for transport through the body. These functions depend on structural arrangement of atoms within the protein, which was, until recently, only possible to measure statistically, in easily crystallized samples via conventional X-ray diffraction. In the past decade, X-ray Free Electron Lasers (XFELs), a new type of X-ray source, have begun to come online. Using ultra-bright, ultrafast X-ray pulses of the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory, this technology allows us to measure not only static pictures of protein structure but to record “molecular movies” of proteins in action. Series: "Lawrence Livermore National Lab Science on Saturday" [Science] [Show ID: 33432]

Proteins are nature’s machines, performing tasks from transforming sunlight into useable energy to binding oxygen for transport through the body. These functions depend on structural arrangement of atoms within the protein, which was, until recently, only possible to measure statistically, in easily crystallized samples via conventional X-ray diffraction. In the past decade, X-ray Free Electron Lasers (XFELs), a new type of X-ray source, have begun to come online. Using ultra-bright, ultrafast X-ray pulses of the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory, this technology allows us to measure not only static pictures of protein structure but to record “molecular movies” of proteins in action. Series: "Lawrence Livermore National Lab Science on Saturday" [Science] [Show ID: 33432]

Proteins are nature’s machines, performing tasks from transforming sunlight into useable energy to binding oxygen for transport through the body. These functions depend on structural arrangement of atoms within the protein, which was, until recently, only possible to measure statistically, in easily crystallized samples via conventional X-ray diffraction. In the past decade, X-ray Free Electron Lasers (XFELs), a new type of X-ray source, have begun to come online. Using ultra-bright, ultrafast X-ray pulses of the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory, this technology allows us to measure not only static pictures of protein structure but to record “molecular movies” of proteins in action. Series: "Lawrence Livermore National Lab Science on Saturday" [Science] [Show ID: 33432]

Proteins are nature’s machines, performing tasks from transforming sunlight into useable energy to binding oxygen for transport through the body. These functions depend on structural arrangement of atoms within the protein, which was, until recently, only possible to measure statistically, in easily crystallized samples via conventional X-ray diffraction. In the past decade, X-ray Free Electron Lasers (XFELs), a new type of X-ray source, have begun to come online. Using ultra-bright, ultrafast X-ray pulses of the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory, this technology allows us to measure not only static pictures of protein structure but to record “molecular movies” of proteins in action. Series: "Lawrence Livermore National Lab Science on Saturday" [Science] [Show ID: 33432]

How often do you wonder about supercomputers and computers that "think" like humans? Supercomputers have been used to model complex scientific phenomena for decades. Now, scientists are entering a new era in computing, and computers are learning in a way that is similar to the human brain. With enough information, computers can learn to solve problems in novel and interesting ways. Specialized computers can even solve these problems using significantly less energy than "classical" computers. This talk describes using supercomputers to solve challenging problems and the evolving technologies of learning systems. Series: "Lawrence Livermore National Lab Science on Saturday" [Science] [Show ID: 33430]