Muons can also be generated terrestrially. Given the small number of muons that reach the Earth’s surface and the divergent paths they travel through the atmosphere, it can take days to months to capture enough muon data to produce meaningful results. Cosmic muons have played a role in special projects, such as when scientists used them to image interior chambers of the great pyramids in Egypt. Harnessing these muons for imaging is tedious and not very practical. Cosmic ray interactions in the upper atmosphere naturally generate muons as they descend to Earth in created particle showers. Currently, two primary sources for muons exist. Producing muons, however, is a challenge, because it requires a very high-energy, giga-electronvolt (GeV) particle source. At high energy, muons can travel easily through dozens to hundreds of meters of water, solid rock, or soil. Muons are similar to electrons but about 200 times heavier. For such imaging capabilities, a more powerful particle is needed.ĭARPA’s Muons for Science & Security program (MuS2 – pronounced Mew-S-2) aims to create a compact source of deeply penetrating subatomic particles known as muons. But none of these sources can image through concrete walls several meters thick, map the core of a volcano from the outside, or peer deep underground to locate chambers and tunnels. The Defense Department and other federal agencies have sought advanced sources that generate gamma rays, X-rays, neutrons, protons, and electrons to enable a variety of scientific, commercial, and defense applications – from medical diagnostics, to scans of cargo containers for dangerous materials, to non-destructive testing of aircraft and their parts to see internal defects. The goals of the MuS2 Proposers Day are to (1) introduce the research community (Proposers, Academia, and Government) to the MuS2 program vision and goals, (2) explain the mechanics of a DARPA program and the milestones of this particular effort, and (3) encourage and promote teaming arrangements among potential organizations that have the relevant expertise, facilities, and capabilities for executing a research and development program responsive to the MuS2 program goals. Note, all times listed in this announcement and on the registration website are Eastern Time. Advance registration is required for viewing the webcast. The Proposers Day will be held via webcast on Augfrom 1:00 PM to 2:00 PM. Position markers: 5th, 7th and 10th frets.The Defense Advanced Research Projects Agency (DARPA) Defense Sciences Office (DSO) is sponsoring a Proposers Day webcast to provide information to potential proposers on the objectives of an anticipated Broad Agency Announcement (BAA) for the Muons for Science and Security (MuS2) program. It’s a great combination that guarantees a stable intonation across the fretboard, is gentle to your hands, and looks great as well. The neck and fingerboard of this ukulele are made from African mahogany and Walnut. Solid mahogany packs a punch unmatched to any other instrument, which is why it is perfect for a soprano that is vintage-styled like the MUS2. Its colour can vary a fair amount, from a pale pinkish brown to a darker reddish brown, and it tends to darken with age. Mahogany is a hardwood which has been used to make quality musical instruments for centuries. The Flight MUS2 is made from solid mahogany. To reflect the vintage look, the MUS2 includes traditional premium Japanese-made Gotoh friction tuners. This vintage-styled model is made from solid mahogany, and packs a punch with its thin and resonant mahogany sound board. The Flight MUS2 soprano uke is all about heritage from head to saddle. Just take a moment to appreciate the stunning majesty of the Flight MUS-2 vintage style all solid mahogany soprano ukulele.
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