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A brief explanation of some of the physics behind spindle spinning, including why bottom whorl spindles are more stable.
If you'd like to use this image in a spinning class, please contact me and I can send you a higher-quality PDF that will print out nicely.
A portrait of Michael M performing at The Voodoo Rooms last night.
They were fabulous....really enjoyed the gig.
I first saw them in 2009 when they supported Franz Ferdinand...and they caught the eye then.
You can see shots from that gig, here: We Are the Physics
A really fun band. :-)
You can find their website here:
"Power Plane" toy I got from Dr. Bacon, my grade-13 physics teacher, for being the best physics student.
Dr. Donald Pakey leads a lab during a Physics class in the Physical Sciences building on the campus of Eastern Illinois University in Charleston, Illinois on September 10, 2020. During the lab, students learned how to utilize an iOLab device which will allow EIU physics students to continue conducting experiments from home in order to avoid in-person contact. (Jay Grabiec)
Um, mine doesn't look so good...I got this book when my dad (physics prof for 39 years) had retired and was clearing out his office.
The 135mm F2.8 Prime: An "Advanced Canon T70" from 1984: Best Retro End-of-an-Era Canon FD (mount) SLR Kit with three essential Lenses from this era - 5 images - Canon EOS 30D with Canon EF 50mm 1:1.8 Prime (EOS mount) - Photographer Russell McNeil PhD (Physics) lives on Vancouver Island, where he works as a writer.
Nothing fancy here. Just an upload of an image with the purpose of being found by any "The Physics Classroom" search.
A ray of sunlight hits the water surface in an angle of 32 degrees. The depth of the water is 48 cm. What happens to the angle of that ray of sunlight? What happens to that ray of sunlight if there is a mirror ...
My first photo project of the year. Shows that image distances can differ from object distances (all Lego dudes are same distance from camera but all can not be focused at once). Simple idea which will crush Ben on contest day
Grey Hawk - Mach 8-10 - 7th / 8th Gen Hypersonic Super Fighter Aircraft, IO Aircraft www.ioaircraft.com
New peek, very little is posted or public. Grey Hawk - Mach 8-10 Hypersonic 7th/8th Gen Super Fighter. This is not a graphics design, but ready to be built this moment. Heavy CFD, Design Work, Systems, etc.
All technologies developed and refined. Can out maneuver an F22 or SU-35 all day long subsonically, and no missile on earth could catch it. Lots of details omitted intentionally, but even internal payload capacity is double the F-22 Raptor. - www.ioaircraft.com/hypersonic.php
Length: 60'
Span: 30'
Engines: 2 U-TBCC (Unified Turbine Based Combined Cycle)
2 360° Thrust Vectoring Center Turbines
Fuel: Kero / Hydrogen
Payload: Up to 4 2,000 LBS JDAM's Internally
Up to 6 2,000 LBS JDAM's Externally
Range: 5,000nm + Aerial Refueling Capable
www.ioaircraft.com/hypersonic.php
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Unified Turbine Based Combined Cycle. Current technologies and what Lockheed is trying to force on the Dept of Defense, for that low speed Mach 5 plane DOD gave them $1 billion to build and would disintegrate above Mach 5, is TBCC. 2 separate propulsion systems in the same airframe, which requires TWICE the airframe space to use.
Unified Turbine Based Combined Cycle is 1 propulsion system cutting that airframe deficit in half, and also able to operate above Mach 10 up to Mach 15 in atmosphere, and a simple nozzle modification allows for outside atmosphere rocket mode, ie orbital capable.
Additionally, Reaction Engines maximum air breather mode is Mach 4.5, above that it will explode in flight from internal pressures are too high to operate. Thus, must switch to non air breather rocket mode to operate in atmosphere in hypersonic velocities. Which as a result, makes it not feasible for anything practical. It also takes an immense amount of fuel to function.
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Advanced Additive Manufacturing for Hypersonic Aircraft
Utilizing new methods of fabrication and construction, make it possible to use additive manufacturing, dramatically reducing the time and costs of producing hypersonic platforms from missiles, aircraft, and space capable craft. Instead of aircraft being produced in piece, then bolted together; small platforms can be produced as a single unit and large platforms can be produces in large section and mated without bolting. These techniques include using exotic materials and advanced assembly processes, with an end result of streamlining the production costs and time for hypersonic aircraft; reducing months of assembly to weeks. Overall, this process greatly reduced the cost for producing hypersonic platforms. Even to such an extent that a Hellfire missile costs apx $100,000 but by utilizing our technologies, replacing it with a Mach 8-10 hypersonic missile of our physics/engineering and that missile would cost roughly $75,000 each delivered.
Materials used for these manufacturing processes are not disclosed, but overall, provides a foundation for extremely high stresses and thermodynamics, ideal for hypersonic platforms. This specific methodology and materials applications is many decades ahead of all known programs. Even to the extend of normalized space flight and re-entry, without concern of thermodynamic failure.
*Note, most entities that are experimenting with additive manufacturing for hypersonic aircraft, this makes it mainstream and standardized processes, which also applies for mass production.
What would normally be measured in years and perhaps a decade to go from drawing board to test flights, is reduced to singular months and ready for production within a year maximum.
Unified Turbine Based Combined Cycle (U-TBCC)
To date, the closest that NASA and industry have achieved for turbine based aircraft to fly at hypersonic velocities is by mounting a turbine into an aircraft and sharing the inlet with a scramjet or rocket based motor. Reaction Engines Sabre is not able to achieve hypersonic velocities and can only transition into a non air breathing rocket for beyond Mach 4.5
However, utilizing Unified Turbine Based Combine Cycle also known as U-TBCC, the two separate platforms are able to share a common inlet and the dual mode ramjet/scramjet is contained within the engine itself, which allows for a much smaller airframe footprint, thus engingeers are able to then design much higher performance aerial platforms for hypersonic flight, including the ability for constructing true single stage to orbit aircraft by utilizing a modification/version that allows for transition to outside atmosphere propulsion without any other propulsion platforms within the aircraft. By transitioning and developing aircraft to use Unified Turbine Based Combined Cycle, this propulsion system opens up new options to replace that airframe deficit for increased fuel capacity and/or payload.
Enhanced Dynamic Cavitation
Dramatically Increasing the efficiency of fuel air mixture for combustion processes at hypersonic velocities within scramjet propulsion platforms. The aspects of these processes are non disclosable.
Dynamic Scramjet Ignition Processes
For optimal scramjet ignition, a process known as Self Start is sought after, but in many cases if the platform becomes out of attitude, the scramjet will ignite. We have already solved this problem which as a result, a scramjet propulsion system can ignite at lower velocities, high velocities, at optimal attitude or not optimal attitude. It doesn't matter, it will ignite anyways at the proper point for maximum thrust capabilities at hypersonic velocities.
Hydrogen vs Kerosene Fuel Sources
Kerosene is an easy fuel to work with, and most western nations developing scramjet platforms use Kerosene for that fact. However, while kerosene has better thermal properties then Hydrogen, Hydrogen is a far superior fuel source in scramjet propulsion flight, do it having a much higher efficiency capability. Because of this aspect, in conjunction with our developments, it allows for a MUCH increased fuel to air mixture, combustion, thrust; and ability for higher speeds; instead of very low hypersonic velocities in the Mach 5-6 range. Instead, Mach 8-10 range, while we have begun developing hypersonic capabilities to exceed 15 in atmosphere within less then 5 years.
Conforming High Pressure Tank Technology for CNG and H2.
As most know in hypersonics, Hydrogen is a superior fuel source, but due to the storage abilities, can only be stored in cylinders thus much less fuel supply. Not anymore, we developed conforming high pressure storage technology for use in aerospace, automotive sectors, maritime, etc; which means any overall shape required for 8,000+ PSI CNG or Hydrogen. For hypersonic platforms, this means the ability to store a much larger volume of hydrogen vs cylinders.
As an example, X-43 flown by Nasa which flew at Mach 9.97. The fuel source was Hydrogen, which is extremely more volatile and combustible then kerosene (JP-7), via a cylinder in the main body. If it had used our technology, that entire section of the airframe would had been an 8,000 PSI H2 tank, which would had yielded 5-6 times the capacity. While the X-43 flew 11 seconds under power at Mach 9.97, at 6 times the fuel capacity would had yielded apx 66 seconds of fuel under power at Mach 9.97. If it had flew slower, around Mach 6, same principles applied would had yielded apx 500 seconds of fuel supply under power (slower speeds required less energy to maintain).
Enhanced Fuel Mixture During Shock Train Interaction
Normally, fuel injection is conducted at the correct insertion point within the shock train for maximum burn/combustion. Our methodologies differ, since almost half the fuel injection is conducted PRE shock train within the isolator, so at the point of isolator injection the fuel enhances the combustion process, which then requires less fuel injection to reach the same level of thrust capabilities.
Improved Bow Shock Interaction
Smoother interaction at hypersonic velocities and mitigating heat/stresses for beyond Mach 6 thermodynamics, which extraordinarily improves Type 3, 4, and 5 shock interaction.
6,000+ Fahrenheit Thermal Resistance
To date, the maximum thermal resistance was tested at AFRL in the spring of 2018, which resulted in a 3,200F thermal resistance for a short duration. This technology, allows for normalized hypersonic thermal resistance of 3,000-3,500F sustained, and up to 6,500F resistance for short endurance, ie 90 seconds or less. 10-20 minute resistance estimate approximately 4,500F +/- 200F.
*** This technology advancement also applies to Aerospike rocket engines, in which it is common for Aerospike's to exceed 4,500-5,000F temperatures, which results in the melting of the reversed bell housing. That melting no longer ocurrs, providing for stable combustion to ocurr for the entire flight envelope
Scramjet Propulsion Side Wall Cooling
With old technologies, side wall cooling is required for hypersonic flight and scramjet propulsion systems, otherwise the isolator and combustion regions of a scramjet would melt, even using advanced ablatives and ceramics, due to their inability to cope with very high temperatures. Using technology we have developed for very high thermodynamics and high stresses, side wall cooling is no longer required, thus removing that variable from the design process and focusing on improved ignition processes and increasing net thrust values.
Lower Threshold for Hypersonic Ignition
Active and adaptive flight dynamics, resulting in the ability for scramjet ignition at a much lower velocity, ie within ramjet envelope, between Mach 2-4, and seamless transition from supersonic to hypersonic flight, ie supersonic ramjet (scramjet). This active and dynamic aspect, has a wide variety of parameters for many flight dynamics, velocities, and altitudes; which means platforms no longer need to be engineered for specific altitude ranges or preset velocities, but those parameters can then be selected during launch configuration and are able to adapt actively in flight.
Dramatically Improved Maneuvering Capabilities at Hypersonic Velocities
Hypersonic vehicles, like their less technologically advanced brethren, use large actuator and the developers hope those controls surfaces do not disintegrate in flight. In reality, it is like rolling the dice, they may or may not survive, hence another reason why the attempt to keep velocities to Mach 6 or below. We have shrunken down control actuators while almost doubling torque and response capabilities specifically for hypersonic dynamics and extreme stresses involved, which makes it possible for maximum input authority for Mach 10 and beyond.
Paradigm Shift in Control Surface Methodologies, Increasing Control Authority (Internal Mechanical Applications)
To date, most control surfaces for hypersonic missile platforms still use fins, similar to lower speed conventional missiles, and some using ducted fins. This is mostly due to lack of comprehension of hypersonic velocities in their own favor. Instead, the body itself incorporates those control surfaces, greatly enhancing the airframe strength, opening up more space for hardware and fuel capacity; while simultaneously enhancing the platforms maneuvering capabilities.
A scramjet missile can then fly like conventional missile platforms, and not straight and level at high altitudes, losing velocity on it's decent trajectory to target. Another added benefit to this aspect, is the ability to extend range greatly, so if anyone elses hypersonic missile platform were developed for 400 mile range, falling out of the sky due to lack of glide capabilities; our platforms can easily reach 600+ miles, with minimal glide deceleration.
High energy physics is challenged by unresolved mysteries—from missing particles predicted by the standard model to the 95% of the missing mass in the universe. To fulfill these missions, particle accelerators rely on continuously increasing acceleration gradients, now beyond the actual technology.
The Department of Energy’s Office of High Energy Physics recently awarded Argonne $3.3 million to improve the performance of superconducting radio frequency (SRF) cavities. The uniqueness of Argonne’s approach is to combine a recent synthesis technique, which combines atomic layer deposition with an original solution to improve and/or cure radio frequency niobium cavities: a multilayer structure composed of superconducting-insulating films synthesized on the inside walls of the cavity. This effort is being developed in close collaboration between Argonne’s High Energy Physics, Energy Systems and Materials Science divisions, as well as Jefferson Lab, Fermilab, Illinois Institute of Technology, and several other universities.
Image courtesy Argonne National Laboratory.
We took a string of Christmas lights and started to swing it around! The picture was taken with an exposure time of 1 second.
This is one of the modes of vibration of the string ("mode of vibration" just means style or way of vibrating). What other modes are possible on a string fixed at both ends?
Peter Nugent - LBL astro-computation
with Cray XT-4 supercomputer cluster at Oakland Scientific Facility
credit: Lawrence Berkeley Nat'l Lab - Roy Kaltschmidt, photographer
XBD200705-00167.TIF
This is a test shot using the stroboscopic mode of my new Canon Speedlite 580EX II flash. This is a one second exposure with the flash firing fifteen times at a rate of thirty flashes per second (30Hz) at 1/128th of maximum power.
Yes, this does effectively make this a 1/2 second exposure, I screwed up and forget to change the flash count when I changed the flash speed.
This has undergone a fair amount of work in Photoshop to remove wrinkles in the black cloth background, etc. I'm happy with it as a first experiment, but I hope to do better in the future.
British streetwear brand Aerosoul has been bridging the worlds of fashion and music for well over a decade. Initially conceived back in 1998, founder Leke Adesoye (who trained at the London College of Fashion) drew inspiration from the thriving underground jungle, hip-hop, soul and breakbeat scenes in his home city of London to create a brand that has remained synonymous with urban music and its vibrant sub cultures ever since.
Aerosoul's designs are worn by Roots Manuva, D-Double-E , Natty, Bryan G, MistaJam, Alix Perez, Omar, MJ Cole, A Guy Called Gerald, Paradox, DJ Die, Skinnyman, A.I, Normski, ZeroT, Zion I, Robert Owens, TY, Krust, General Levy, Mutt, Domu, Lynx & Kemo, The Insiders, Ill Logic & Raf and Rodney P plus many more from the music industry.
But Aerosoul is as much about fashion as music, and as such a diverse list of celebrities have been spotted rocking the brand. From the cast of Hollyoaks and Sky One’s Grease School Musical, to diva model Sophie Anderton, bands The Boo Radleys , London Elektricity and Groove Armada, and actors Adam Deacon and Stephen Graham – Aerosoul’s appeal reaches far beyond just urban music.
Copyright www.aerosoul.co.uk
The 19th Annual Theatre Physics held September 21, 22, 23, 2012. The fast-paced, vaudeville-style show features original material in short skits that are written, directed, and produced by the students and staff of the Bethany Theater Department.
a few physics books lying around the lab. on top of it is the base of a stand which is used to clamp stuff.
Annie Preske
Natural
"Galileo Thermometer"
This is a close-up image of a Galileo Thermometer. It is a glass tube filled with water and floating glass bubbles containing various liquids. On each individual bubble, there is a metal tag indicating a temperature. Together, a bubble and its metal tag have a slightly different density compared to another bubble and its corresponding metal tag. Each of the bubbles experiences a downward force due to gravity and a buoyant force, or the upward force on a glass bubble produced by the surrounding liquid in which the bubble is submerged.The air temperature outside of the thermometer equals the water temperature, or the liquid surrounding the bubbles. The densities of each bubble remain constant. As the temperature of the water decreases, its density increases. As the surrounding water density changes, each bubble floats or sinks based on the density differences among the glass bubbles. Finally, to read this thermometer, simply look for the lowest floating glass bubble and its metal tag. In this photo, the temperature is 72°, as indicated by the red glass bubble.
Greetings mate! I love voyaging forth to Zion National Park to contemplate poetry, physics, the golden ratio, and the Tao te Ching! What's your favorite epic poetry reflecting epic landscapes? I recently finished a book titled Epic Poetry for Epic Landscape Photographers:
www.facebook.com/Epic-Poetry-for-Epic-Landscape-Photograp...
Did you know that John Muir, Thoreau, and Emerson all loved epic poetry and poets including Shakespeare, Milton, Homer, and Robert Burns?
How inspiring the grandeur of Zion is! It reminds us of those entities greater than ourselves, such as Homer's Iliad and Odyssey and Light Time Dimension Theory!
I recently finished my fourth book on Light Time Dimension Theory, much of which was inspired by an autumn trip to Zion!
www.facebook.com/lightimedimensiontheory/
Via its simple principle of a fourth expanding dimension, LTD Theory provides a unifying, foundational *physical* model underlying relativity, quantum mechanics, time and all its arrows and asymmetries, and the second law of thermodynamics. The detailed diagrams demonstrate that the great mysteries of quantum mechanical nonlocality, entanglement, and probability naturally arise from the very same principle that fosters relativity alongside light's constant velocity, the equivalence of mass and energy, and time dilation.
Follow me on intsagram!
Join my new 45EPIC fine art landscapes page on facebook!
Fresh snow! More on my golden ratio musings: The Golden Number Ratio Principle: Why the Fibonacci Numbers Exalt Beauty and How to Create PHI Compositions in Art, Design, & Photography facebook.com/goldennumberratio
Best wishes on your epic hero's odyssey!:)
Zion National Park Winter Fine Art Photography 45EPIC Dr. Elliot McGucken Fine Art Landscape and Nature Photography
(Credit: Douglas Seiler)
Taken at SSRL Beam Line 5-4.
This photo received an honorable mention in the SLAC 2015 Physics Photowalk. To view the full set of winners visit:
www6.slac.stanford.edu/physics-photowalk-2015-winning-photos
To see Global Physics Photowalk winning photos from other participating labs, visit the Global Physics Photowalk page at Interactions.org: www.interactions.org/photowalk
Greetings mate! I love voyaging forth to Bryce Canyon and Zion National Park to contemplate poetry, physics, the golden ratio, and the Tao te Ching! What's your favorite epic poetry reflecting epic landscapes? I recently finished a book titled Epic Poetry for Epic Landscape Photographers:
www.facebook.com/Epic-Poetry-for-Epic-Landscape-Photograp...
Did you know that John Muir, Thoreau, and Emerson all loved epic poetry and poets including Shakespeare, Milton, Homer, and Robert Burns?
I recently finished my fourth book on Light Time Dimension Theory, much of which was inspired by an autumn trip to Zion!
www.facebook.com/lightimedimensiontheory/
Via its simple principle of a ofurth expanding dimension, LTD Theory provides a unifying, foundational *physical* model underlying relativity, quantum mechanics, time and all its arrows and asymmetries, and the second law of thermodynamics. The detailed diagrams demonstrate that the great mysteries of quantum mechanical nonlocality, entanglement, and probability naturally arise from the very same principle that fosters relativity alongside light's constant velocity, the equivalence of mass and energy, and time dilation.
Follow me on intsagram!
Join my new 45EPIC fine art landscapes page on facebook!
Fresh snow! More on my golden ratio musings: The Golden Number Ratio Principle: Why the Fibonacci Numbers Exalt Beauty and How to Create PHI Compositions in Art, Design, & Photography facebook.com/goldennumberratio
Best wishes on your epic hero's odyssey!:)
Bryce Canyon National Park Autumn Colors & Winter Snow Fine Art Photography 45EPIC Dr. Elliot McGucken Fine Art Landscape and Nature Photography: Nikon D810
Love shooting with both the sony A7RII and the Nikon D810! :)