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Students taking part in the 37th Annual Hampton University Graduate Studies (HUGS) Program tour the CEBAF accelerator tunnel at Jefferson Lab in Newport News, Va., on Friday, June 2, 2023. (Aileen Devlin | Jefferson Lab)
The HUGS Program at Jefferson Lab is an educational summer program designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields.
Components of the GlueX Spectrometer seen inside Experimental Hall D at Jefferson Lab on Wednesday, Mar. 16, 2023. (Photo by Aileen Devlin | Jefferson Lab)
Senior SRF Engineer Tony Reilly, center, chats with review members inside the SRF Test Lab during the EIC OPA Review on Wednesday, Feb. 1, 2023. (Photo by Aileen Devlin | Jefferson Lab)
Members of the Oppenheimer Science and Energy Leadership Program (OSELP) visit and tour the facilities at Jefferson Lab in Newport News, Va., on Wednesday, May 24, 2023. (Aileen Devlin | Jefferson Lab)
A herd of deer graze the campus at Jefferson Lab in Newport News, Va., on Wednesday, Apr. 19, 2023. (Aileen Devlin | Jefferson Lab)
Teachers participate in a “phases of the moon” themed lesson plan during the Region II Physical Science Teacher Night held at Jefferson Lab on Newport News, Va., on Thursday, April 3, 2025. (Aileen Devlin | Jefferson Lab)
Teachers from the JSAT (Jefferson Lab Science Activities for Teachers) shared science-themed classroom activities geared toward upper elementary and middle school students.
Students taking part in the 37th Annual Hampton University Graduate Studies (HUGS) Program tour the CEBAF accelerator tunnel at Jefferson Lab in Newport News, Va., on Friday, June 2, 2023. (Aileen Devlin | Jefferson Lab)
The HUGS Program at Jefferson Lab is an educational summer program designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields.
This is a block printed portrait of Danish physicist Niels Bohr (1885-1962). One of his most famous contributions to quantum mechanics was the Bohr-Rutherford model of the atom. Bohr is shown in front of the Bohr model of the Hydrogen atom (all the concentric circles are actually at the appropriate spacing, proportional to the n squared, which probably reflects on my sanity in some way). Bohr proposed that the orbits of electrons were somewhat like planetary orbits (though circular, and at specific quantized distances). To explain how orbitting charged electrons didn't lose energy and annihilate spectacularly with the so-called "spiral death" (physicists are big on melodrama, I'm telling you), he stipulated that perhaps they simply weren't allowed anywhere but the specific orbits. They could lower their energy state if excited by falling to a lower orbit, giving off a specific photon of a specific colour related to the difference between energy levels. This also explained how the spectra of gases had distinct, thin, spectral lines. I've illustrated this with the Balmer series - because it is composed of lines which are visible to the eye (H-alpha is red and caused by a jump from the 3rd to 2nd orbit; H-beta is cyan and caused by a jump from the 4th to 2nd orbit; H-gamma is indigo and caused by a jump from the 5th to 2nd orbit; and H-delta is violet and caused by a jump from the 6th to 2nd orbit). I've shown both the quantum jumps (squigelly arrows - squigelly lines are tradition for photons) and by the line spectrum below Bohr.
This is a first edition print (one of eight) on Japanese kozo (mulberry) paper, (12.5" by 17").
Attendees mingle and enjoy coffee and cake during the 30th anniversary of the CLAS Collaboration 30th workshop at Jefferson Lab in Newport News, Va., on Thursday, November 2, 2022. (Photo by Aileen Devlin | Jefferson Lab)
Thomas Jefferson National Accelerator Facility (Jefferson Lab) provides scientists worldwide the lab’s unique particle accelerator, known as the Continuous Electron Beam Accelerator Facility (CEBAF), to probe the most basic building blocks of matter by conducting research at the frontiers of nuclear physics (NP) and related disciplines.
In addition, the lab capitalizes on its unique technologies and expertise to perform advanced computing and applied research with industry and university partners, and provides programs designed to help educate the next generation in science and technology. Thursday, December 1, 2022. (Photo by Aileen Devlin | Jefferson Lab)
Jefferson Lab employees work to move a newly finished C100 cryomodule from the SRF Test lab to installing inside the CEBAF accelerator tunnel at Jefferson Lab in Newport News Va., on May 4, 2023. (Aileen Devlin | Jefferson Lab)
Attendees mingle and enjoy coffee and cake during the 30th anniversary of the CLAS Collaboration 30th workshop at Jefferson Lab in Newport News, Va., on Thursday, November 2, 2022. (Photo by Aileen Devlin | Jefferson Lab)
Chemistry Technician Teena Harris prepares bench chemistry for an acid bath while working inside the Production Chemistry Room at Jefferson Lab on Thursday, Dec. 1, 2022. (Photo by Aileen Devlin | Jefferson Lab)
Students taking part in the 37th Annual Hampton University Graduate Studies (HUGS) Program pose for a group photos at Jefferson Lab in Newport News, Va., on Wednesday, May 31, 2023. (Aileen Devlin | Jefferson Lab)
The HUGS Program at Jefferson Lab is an educational summer program designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields.
From Left: Senior SRF Engineer Tony Reilly chats with Congresswoman Jennifer McClellan, Congresswoman Jen Kiggans, Congressman Bobby Scott, and Director Stuart Henderson during a visit inside the SRF Test Lab at Jefferson Lab in Newport News, Va., on Tuesday, May 2, 2023. (Aileen Devlin | Jefferson Lab)
Virginia Economic Development Association (VEDA) members walk to the SRF Test Lab for a tour at Jefferson Lab on Wednesday, Mar. 15, 2023. (Photo by Aileen Devlin | Jefferson Lab)
A herd of deer graze the campus at Jefferson Lab in Newport News, Va., on Wednesday, Apr. 19, 2023. (Aileen Devlin | Jefferson Lab)
Students taking part in the 37th Annual Hampton University Graduate Studies (HUGS) Program tour Experimental Hall C at Jefferson Lab in Newport News, Va., on Friday, June 2, 2023. (Aileen Devlin | Jefferson Lab)
The HUGS Program at Jefferson Lab is an educational summer program designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields.
SRF Crymodule Assembly Tech Mike Murphy, left, and SRF Technician Wayne Carter, right, work inside the Cryomodule Assembly area in the SRF Test Lab located at Jefferson Lab on Wednesday, November 16, 2022. (Photo by Aileen Devlin | Jefferson Lab)
Deputy Associate Director for Accelerator Operations Mike Spata, left, and DOE Office of Science’s Michelle Shinn, right, pose for a photograph inside the North Linac tunnel during the EIC OPA Review tour on Wednesday, Feb. 1, 2023. (Photo by Aileen Devlin | Jefferson Lab)
Attendees of the joint DOE/NIH Workshop: Advancing Medical Care through Discovery in the Physical Sciences Workshop Series tour Experimental Hall D at Jefferson Lab on Wednesday, Mar. 16, 2023. (Photo by Aileen Devlin | Jefferson Lab)
Seen inside the Continuous Electron Beam Accelerator Facility located at Jefferson Lab in Newport News, Va., on Thursday, Aug. 17, 2023. (Aileen Devlin | Jefferson Lab)
Colored light reflects off metallic surface details inside the SNS-PPU cryomodule at the SRF Test Lab at Jefferson Lab in Newport News, Va., on Friday Dec. 15, 2023. (Aileen Devlin | Jefferson Lab)
Thomas Jefferson National Accelerator Facility (Jefferson Lab) provides scientists worldwide the lab’s unique particle accelerator, known as the Continuous Electron Beam Accelerator Facility (CEBAF), to probe the most basic building blocks of matter by conducting research at the frontiers of nuclear physics (NP) and related disciplines.
In addition, the lab capitalizes on its unique technologies and expertise to perform advanced computing and applied research with industry and university partners, and provides programs designed to help educate the next generation in science and technology. Thursday, December 1, 2022. (Photo by Aileen Devlin | Jefferson Lab)
Students taking part in the 37th Annual Hampton University Graduate Studies (HUGS) Program tour the CEBAF accelerator tunnel at Jefferson Lab in Newport News, Va., on Friday, June 2, 2023. (Aileen Devlin | Jefferson Lab)
The HUGS Program at Jefferson Lab is an educational summer program designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields.
A review member takes a photograph while inside the North Linac tunnel during the EIC OPA Review tour on Wednesday, Feb. 1, 2023. (Photo by Aileen Devlin | Jefferson Lab)
Students taking part in the 37th Annual Hampton University Graduate Studies (HUGS) Program tour the CEBAF accelerator tunnel at Jefferson Lab in Newport News, Va., on Friday, June 2, 2023. (Aileen Devlin | Jefferson Lab)
The HUGS Program at Jefferson Lab is an educational summer program designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields.
Thomas Jefferson National Accelerator Facility (Jefferson Lab) provides scientists worldwide the lab’s unique particle accelerator, known as the Continuous Electron Beam Accelerator Facility (CEBAF), to probe the most basic building blocks of matter by conducting research at the frontiers of nuclear physics (NP) and related disciplines.
In addition, the lab capitalizes on its unique technologies and expertise to perform advanced computing and applied research with industry and university partners, and provides programs designed to help educate the next generation in science and technology. Thursday, December 1, 2022. (Photo by Aileen Devlin | Jefferson Lab)
SRF Production Chemistry Tech River Fiedler checks the acid level monitors for the Horizontal Electropolish while working inside the Production Chemistry Room at Jefferson Lab on Thursday, Dec. 1, 2022. (Photo by Aileen Devlin | Jefferson Lab)
Tour Coordinator Mike Robbins, center, moves students taking part in the 37th Annual Hampton University Graduate Studies (HUGS) Program through the CEBAF accelerator tunnel at Jefferson Lab in Newport News, Va., on Friday, June 2, 2023. (Aileen Devlin | Jefferson Lab)
The HUGS Program at Jefferson Lab is an educational summer program designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields.
This is a block printed portrait of Danish physicist Niels Bohr (1885-1962). One of his most famous contributions to quantum mechanics was the Bohr-Rutherford model of the atom. Bohr is shown in front of the Bohr model of the Hydrogen atom (all the concentric circles are actually at the appropriate spacing, proportional to the n squared, which probably reflects on my sanity in some way). Bohr proposed that the orbits of electrons were somewhat like planetary orbits (though circular, and at specific quantized distances). To explain how orbitting charged electrons didn't lose energy and annihilate spectacularly with the so-called "spiral death" (physicists are big on melodrama, I'm telling you), he stipulated that perhaps they simply weren't allowed anywhere but the specific orbits. They could lower their energy state if excited by falling to a lower orbit, giving off a specific photon of a specific colour related to the difference between energy levels. This also explained how the spectra of gases had distinct, thin, spectral lines. I've illustrated this with the Balmer series - because it is composed of lines which are visible to the eye (H-alpha is red and caused by a jump from the 3rd to 2nd orbit; H-beta is cyan and caused by a jump from the 4th to 2nd orbit; H-gamma is indigo and caused by a jump from the 5th to 2nd orbit; and H-delta is violet and caused by a jump from the 6th to 2nd orbit). I've shown both the quantum jumps (squigelly arrows - squigelly lines are tradition for photons) and by the line spectrum below Bohr.
This is a first edition print (one of eight) on Japanese kozo (mulberry) paper, (12.5" by 17").
Cryomodule components inside the SRF Test Lab at Jefferson Lab on Wednesday, Mar. 16, 2023. (Photo by Aileen Devlin | Jefferson Lab)
How many topics in physics are contained in a simple rainbow produced on the wall (and toilet) by sun shining through a plastic privacy screen?
Well...the light from the sun is composed of many different wavelengths...the distribution of which is dependent on the temperature of the star - which ours is centered on the the yellow. When the the light encounters an optically dense medium (glass or plastic in this case), the light is absorbed by the molecules and passed from molecule to molecule, the probability of which an absorption and emission occurs is described by Feynman's QED. The principle of least action (from D'Alembert and Lagrangian mechanics) finds the maximum probability amplitude, and hence the interaction that occurs, or the direction the light is refracted. The path of light through the medium is dependent on the wavelength and frequency of the light. One can back up to PAM Dirac's relativistic quantum mechanics, ingeniously melded Schrodinger's wave equation and/or Heisenberg's Matrix mechanics with Einstein's relativity, which determined that the only certainty in the universe is the speed of light. Everything else including Newton's fixed stars and time...TIME itself are mutable to make the speed of light constant in every situation. Dirac faced with the actual energy of a particle being the square root of the rest mass and its motion, devised a Hamiltonian that required matricies, later interpreted by Pauli as spin states of particles. Schoedinger and Heisenberg following Bohr's amazing leap of quantized orbits to describe Plancks description of light as quanta....actually they were named by Einstein to describe the photoelectric effect....but Planck needed the quantized description of light to explain the ultraviolet disaster of Rayleigh. Planck was working for the electric company to maximize the light output of municipal utilities at the least cost.... TBC
How many topics in physics are contained in a simple rainbow produced on the wall (and toilet) by sun shining through a plastic privacy screen?
Well...the light from the sun is composed of many different wavelengths...the distribution of which is dependent on the temperature of the star - which ours is centered on the the yellow. When the the light encounters an optically dense medium (glass or plastic in this case), the light is absorbed by the molecules and passed from molecule to molecule, the probability of which an absorption and emission occurs is described by Feynman's QED. The principle of least action (from D'Alembert and Lagrangian mechanics) finds the maximum probability amplitude, and hence the interaction that occurs, or the direction the light is refracted. The path of light through the medium is dependent on the wavelength and frequency of the light. One can back up to PAM Dirac's relativistic quantum mechanics, ingeniously melded Schrodinger's wave equation and/or Heisenberg's Matrix mechanics with Einstein's relativity, which determined that the only certainty in the universe is the speed of light. Everything else including Newton's fixed stars and time...TIME itself are mutable to make the speed of light constant in every situation. Dirac faced with the actual energy of a particle being the square root of the rest mass and its motion, devised a Hamiltonian that required matricies, later interpreted by Pauli as spin states of particles. Schoedinger and Heisenberg following Bohr's amazing leap of quantized orbits to describe Plancks description of light as quanta....actually they were named by Einstein to describe the photoelectric effect....but Planck needed the quantized description of light to explain the ultraviolet disaster of Rayleigh. Planck was working for the electric company to maximize the light output of municipal utilities at the least cost.... TBC
Attendees mingle and enjoy coffee and cake during the 30th anniversary of the CLAS Collaboration 30th workshop at Jefferson Lab in Newport News, Va., on Thursday, November 2, 2022. (Photo by Aileen Devlin | Jefferson Lab)
How many topics in physics are contained in a simple rainbow produced on the wall (and toilet) by sun shining through a plastic privacy screen?
Well...the light from the sun is composed of many different wavelengths...the distribution of which is dependent on the temperature of the star - which ours is centered on the the yellow. When the the light encounters an optically dense medium (glass or plastic in this case), the light is absorbed by the molecules and passed from molecule to molecule, the probability of which an absorption and emission occurs is described by Feynman's QED. The principle of least action (from D'Alembert and Lagrangian mechanics) finds the maximum probability amplitude, and hence the interaction that occurs, or the direction the light is refracted. The path of light through the medium is dependent on the wavelength and frequency of the light. One can back up to PAM Dirac's relativistic quantum mechanics, ingeniously melded Schrodinger's wave equation and/or Heisenberg's Matrix mechanics with Einstein's relativity, which determined that the only certainty in the universe is the speed of light. Everything else including Newton's fixed stars and time...TIME itself are mutable to make the speed of light constant in every situation. Dirac faced with the actual energy of a particle being the square root of the rest mass and its motion, devised a Hamiltonian that required matricies, later interpreted by Pauli as spin states of particles. Schoedinger and Heisenberg following Bohr's amazing leap of quantized orbits to describe Plancks description of light as quanta....actually they were named by Einstein to describe the photoelectric effect....but Planck needed the quantized description of light to explain the ultraviolet disaster of Rayleigh. Planck was working for the electric company to maximize the light output of municipal utilities at the least cost.... TBC
Niels Bohr and Max Planck. Historical portrait of the Danish physicist Niels Henrik David Bohr (1885-1962) with the German physicist Max Planck (1858-1947). Planck is at right. They were central figures in the development of quantum theory. Planck proposed in 1900 that radiation is emitted in discrete packets (quanta). Bohr's 1913 model of the hydrogen atom used quantized energy levels for electrons orbiting the nucleus. Bohr received the Nobel Prize for Physics in 1922, as Planck had in 1918. Photographed in 1930.
Students taking part in the 37th Annual Hampton University Graduate Studies (HUGS) Program tour the CEBAF accelerator tunnel at Jefferson Lab in Newport News, Va., on Friday, June 2, 2023. (Aileen Devlin | Jefferson Lab)
The HUGS Program at Jefferson Lab is an educational summer program designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields.
Sixth-grade teacher Erin Little, right, demonstrates a lesson plan during the Teacher Night—for elementary and middle school teachers—hosted by the Science Education Department at Jefferson Lab on Apr. 19, 2023. (Aileen Devlin | Jefferson Lab)
Often described as a "science fair for teachers,” this event allows educators to see new methods for teaching physical science concepts, win door prizes for their classrooms and earn one recertification point.
Fifth-grade teacher Breezy Benton, right, shows a science experiment visualizing static electricity during the 2023 Teacher Night—for elementary and middle school teachers—hosted by the Science Education Department at Jefferson Lab on Apr. 19, 2023. (Aileen Devlin | Jefferson Lab)
Often described as a "science fair for teachers,” this event allows educators to see new methods for teaching physical science concepts, win door prizes for their classrooms and earn one recertification point.
Attendees mingle and enjoy coffee and cake during the 30th anniversary of the CLAS Collaboration 30th workshop at Jefferson Lab in Newport News, Va., on Thursday, November 2, 2022. (Photo by Aileen Devlin | Jefferson Lab)
A member of the Virginia Economic Development Association (VEDA) takes a video of a cryomodule components during a tour of the SRF Test Lab at Jefferson Lab on Wednesday, Mar. 15, 2023. (Photo by Aileen Devlin | Jefferson Lab)
Thomas Jefferson National Accelerator Facility (Jefferson Lab) provides scientists worldwide the lab’s unique particle accelerator, known as the Continuous Electron Beam Accelerator Facility (CEBAF), to probe the most basic building blocks of matter by conducting research at the frontiers of nuclear physics (NP) and related disciplines.
In addition, the lab capitalizes on its unique technologies and expertise to perform advanced computing and applied research with industry and university partners, and provides programs designed to help educate the next generation in science and technology. Thursday, December 1, 2022. (Photo by Aileen Devlin | Jefferson Lab)
Thomas Jefferson National Accelerator Facility (Jefferson Lab) provides scientists worldwide the lab’s unique particle accelerator, known as the Continuous Electron Beam Accelerator Facility (CEBAF), to probe the most basic building blocks of matter by conducting research at the frontiers of nuclear physics (NP) and related disciplines.
In addition, the lab capitalizes on its unique technologies and expertise to perform advanced computing and applied research with industry and university partners, and provides programs designed to help educate the next generation in science and technology. Thursday, December 1, 2022. (Photo by Aileen Devlin | Jefferson Lab)
Deputy Director for Science David Dean gives a presentation about the research and science done at Jefferson Lab to a visiting group on Wednesday, Mar. 15, 2023. (Photo by Aileen Devlin | Jefferson Lab)
Associate Director for Experimental Nuclear Physics Cynthia “Thia” Keppel addresses the crowd during the Biomedical Research & Innovation Center (BRIC) press announcement event held at Jefferson Lab in Newport News, Va., on Friday, Mar. 24, 2023. (Photo by Aileen Devlin | Jefferson Lab)
Cryomodule components inside the SRF Test Lab at Jefferson Lab on Wednesday, Mar. 16, 2023. (Photo by Aileen Devlin | Jefferson Lab)
Thomas Jefferson National Accelerator Facility (Jefferson Lab) provides scientists worldwide the lab’s unique particle accelerator, known as the Continuous Electron Beam Accelerator Facility (CEBAF), to probe the most basic building blocks of matter by conducting research at the frontiers of nuclear physics (NP) and related disciplines.
In addition, the lab capitalizes on its unique technologies and expertise to perform advanced computing and applied research with industry and university partners, and provides programs designed to help educate the next generation in science and technology. Thursday, December 1, 2022. (Photo by Aileen Devlin | Jefferson Lab)