#backscatter

[rainhaunts]

[mikkobm]

Robust Ghost Pipefish floats near motionlessly, around a background that makes them nearly impossible to see. They live in open waters , coral reef or muddy bottom, then changing color and shape to minimize visibility. -wiki #mikkobm #photobymikkobm #olympustg5 #underwater #scuba #mikkobmunderwater #scubamikkobm #crystalblueresort #anilao #batangas #backscatter #backscatterminiflash (at Mabini, Batangas) https://www.instagram.com/p/CeRDll3J3nQ/?igshid=NGJjMDIxMWI=

[baufuesick]

Eine Studie zu Reflexion, Backscattering, Behaglichkeit bei Academia.edu

ClimateCoating als Innenanstrich an Wänden und Decken –Eine Studie zu Reflexion, Backscattering, Behaglichkeit Sie erfahren in der Studie (auf Deutsch verfasst), wie man durch die Verbesserung des Raumklimas mittels Beschichtung von Decken und Wänden die Behaglichkeit verbessert und dadurch Energie einspart. Das physikalische Prinzip ist eine Sonderform der IR Reflexion, die innerhalb der…

[vasthi-instruments12]

[firebirdsdaughter]

I’ll say this…

… NUMB3RS is corny, a bit tasteless, absolutely nonsensical, generally unrealistic, but damn are they not afraid of the government corruption angle.

[wonders-of-the-cosmos]

Belt of Venus and Earth's shadow

The Belt of Venus is an atmospheric phenomenon visible shortly before sunrise or after sunset, during civil twilight. It is a pinkish glow that surrounds the observer, extending roughly 10–20° above the horizon. It appears opposite to the afterglow, which it also reflects.

In a way, the Belt of Venus is actually alpenglow visible near the horizon during twilight, above the antisolar point. Like alpenglow, the backscatter of reddened sunlight also creates the Belt of Venus. Though unlike alpenglow, the sunlight scattered by fine particulates that cause the rosy arch of the Belt shines high in the atmosphere and lasts for a while after sunset or before sunrise.

As twilight progresses, the arch is separated from the horizon by the dark band of Earth's shadow, or "twilight wedge". The pinkish glow is due to the Rayleigh scattering of light from the rising or setting Sun, which is then backscattered by particulates.

Source

Image Credit: Kent Duryee, Kevin Palmer, Mike Lewinski, Alan Dyer

[thefirststarr]

Yes!! Auroras can look like rainbows even though they are completely different phenomena. Auroras are caused by sun-created particles being funnelled into Earth's atmosphere by its magnetic field. It creates colours by exciting atoms at different heights. Alternately, rainbows are created by sunlight backscattering off falling raindrops, and the different colors are refracted by slightly different angles. The featured picture is composed of several images taken on the same night last month near the Skógafoss waterfall in Iceland. The photographer planned on only capturing the central band of our Milky Way galaxy over the picturesque cascade. But by luck, a spectacular aurora soon appeared just below the curving arch of the Milky Way. Far in the background, the Pleiades star cluster and the Andromeda galaxy can be found.

Image Credit & Copyright: Stefano Pellegrini

[apod]

2023 December 27

Rainbow Aurora over Icelandic Waterfall Image Credit & Copyright: Stefano Pellegrini

Explanation: Yes, but can your aurora do this? First, yes, auroras can look like rainbows even though they are completely different phenomena. Auroras are caused by Sun-created particles being channeled into Earth's atmosphere by Earth's magnetic field, and create colors by exciting atoms at different heights. Conversely, rainbows are created by sunlight backscattering off falling raindrops, and different colors are refracted by slightly different angles. Unfortunately, auroras can’t create waterfalls, but if you plan well and are lucky enough, you can photograph them together. The featured picture is composed of several images taken on the same night last month near the Skógafoss waterfall in Iceland. The planning centered on capturing the central band of our Milky Way galaxy over the picturesque cascade. By luck, a spectacular aurora soon appeared just below the curving arch of the Milky Way. Far in the background, the Pleiades star cluster and the Andromeda galaxy can be found.

∞ Source: apod.nasa.gov/apod/ap231227.html

[rainhaunts]

[aprofessionalwithoutstandards]

Alright I'm doing this this should be funnnnn it's fun!

[ID: A graphic showing Scout's class symbol and his six primary weapons surrounding it. End ID]

[mikkobm]

Nudi’s part 2 #mikkobm #photobymikkobm #olympustg5 #underwater #scuba #mikkobmunderwater #scubamikkobm #crystalblueresort #anilao #batangas #backscatter #backscatterminiflash (at Crystal Blue Resort, Anilao Batangas) https://www.instagram.com/p/Cj-ruyupypk/?igshid=NGJjMDIxMWI=

[sakuraswordly]

Astronomy Picture Of the Day

@apod

Rainbow Aurora over Icelandic Waterfall Image Credit & Copyright: Stefano Pellegrini

Explanation: Yes, but can your aurora do this? First, yes, auroras can look like rainbows even though they are completely different phenomena. Auroras are caused by Sun-created particles being channeled into Earth's atmosphere by Earth's magnetic field, and create colors by exciting atoms at different heights. Conversely, rainbows are created by sunlight backscattering off falling raindrops, and different colors are refracted by slightly different angles. Unfortunately, auroras can’t create waterfalls, but if you plan well and are lucky enough, you can photograph them together. The featured picture is composed of several images taken on the same night last month near the Skógafoss waterfall in Iceland. The planning centered on capturing the central band of our Milky Way galaxy over the picturesque cascade. By luck, a spectacular aurora soon appeared just below the curving arch of the Milky Way. Far in the background, the Pleiades star cluster and the Andromeda galaxy can be found.

[baufuesick]

Eine Studie zu Reflexion, Backscattering, Behaglichkeit bei Researchgate.net

ClimateCoating als Innenanstrich an Wänden und Decken –Eine Studie zu Reflexion, Backscattering, Behaglichkeit Sie erfahren in der Studie (auf Deutsch verfasst), wie man durch die Verbesserung des Raumklimas mittels Beschichtung von Decken und Wänden die Behaglichkeit verbessert und dadurch Energie einspart. Das physikalische Prinzip ist eine Sonderform der IR Reflexion, die innerhalb der…

[vasthi-instruments12]

Back Scattered Dust Monitor for Ideal monitoring of opacity and smoke levels in the exhaust gas of industrial combustion or air filtration processes. It is a self-developed online dust monitoring device, which uses the mainstream technology of laser backscatter measurement with imported core components. Tribe Electric Dust Monitor is a real-time continuous indicative dust monitor with logging alarm capability. It consists of a single probe for installation in a silo or duct a control Unit/logger.

[lonestarbattleship]

The incomplete Hawaii (CB-3) being moved to a berth, likely on her way to the scrapyard. Photographed on either May 20 or June 20, 1959. Likely the latter since the Navy Heritage and History Center has a better track record with dates.

Note: her 12 inch/50 caliber Mark 8 gun turrets have already been removed. They were removed in preparation for Hawaii would have become an Aircraft Carrier Task Force Command Ship, under SCB-83 and her hull designation changed to (CBC-1). Unlike the proposed ballistic and guided missile conversions, this conversion was budgeted in 1952.

Painting by Wayne Scarpaci

"This was as parallel to this program was a project to convert the unfinished Oregon City class heavy cruiser Northampton (CLC-1) (later CC-1, ex-CA-125) to a National Emergency Command Post Afloat (NECPA). The NECPA program command ship (Northampton) was where the US President and his Staff would direct US Military Forces during a nuclear conflict."

"Command and control of USN carrier forces during WWII was generally conducted from a standard vessel of the Task Force, with either a battleship or a carrier usually designated as flagship. But the presence of the force commander and his staff aboard was disruptive and resulted in overcrowded conditions, which impacted the combat effectiveness of the assigned ship. But with the superiority of the dedicated Amphibious Command Ship (AGC) concept for command and control of assault forces repeatedly demonstrated during WWII. Serious postwar consideration was given to the concept of a similar dedicated type of ship for Command and Control of Carrier Task Forces. In keeping with this concept in 1952 the USN developed the SCB-83 project to convert the Hawaii (CB-3) into a dedicated Carrier Task Force Command Cruiser (CBC-1). This design was strictly intended as a single mission ship featuring extensive flag facilities for command and control of carrier task forces, but no accommodations for amphibious or other types of operations.

The ship would have been armed with six 5 inch/54 caliber guns in single mounts, shipped three forward and three aft, with eight 3 inch/70 caliber guns in four enclosed twin mounts amidships. It would have fitted an AN/SPS2 radar atop a forward tower and an AN/SPS8A height finder on the aft superstructure. There was to be an SK-2 parabolic dish for tropospherical backscatter communications mounted atop short tower aft of the stack, forward of the AN/SPS8A. Two Mk37/directors with Mk25 fire control radars were provided on the superstructure fore and aft. The superstructure was built up amidships to accommodate the flag staff facilities and the single stack of the original CB design retained."

Work was halted after the turrets were removed and would continue after experience was gained from the conversion of USS Northampton (CC-1). However, it was discovered that it was easier and cheaper to convert USS Wright (CVL-49) into the second Command ship without the loss of capability and Hawaii was sent back to the reserve fleet in Philadelphia Navy Yard.

The hull remained in the reserve fleet for 12 years before it was finally scrapped along with the incomplete hulls of Kentucky (BB-66) and Illinois (BB-65)

NHHC: NH 89293

Mariner's Museum and Park: P0001.014/01-#PN4850, P0001.014/01-#PN4858, P0001.014/01-#PN4853, P0001.014/01-#PN4847, P0001.014/01-#PN4848, P0001.014/01-#PN4849

Information, diagram and painting from "USN BATTESHIP CONVERSIONS PROJECTS" by Wayne Scarpaci: link

source

[mantrabay]

Bonfire Of Imagining 1

When time flies, feelings of euphoria,

spur jaw-dropping habitus within,

vision of nirvana on groundswell earth,

chirping bird amber tone on hedgerow,

cacophony that piercing aural backdrop,

riotry of wild bewitching warble,

golden fronted leaf, black nape oriole,

northern red bishop,

snapshot or sedation, honey dribbled spatula,

that ladles satin eardrums,

as momentary plot unveils its kernel,

fleeting countdown to ecstatic charm,

mesmerising tailspin gust bract swirl,

of diamond stud color burst variety,

time lag is an instinct riven leap,

lustrous spark escape hatch mere sprint,

who could be immune to such splendour,

embellishment or antic flourish,

folly swept aside in brisk stanza,

hyperbole on jewel rim chariot,

passenger in situ juggling spheres,

morning dew mist clad bank enchantment,

divinity in spiral foam waterfall trance,

speckled moon’s transient blind soar,

amid hall of mirror dream cloud etching,

bonfire of imagining without rein,

infant echo chamber left me thunderstruck,

lightning flash recall as I shudder,

with ardent inkling of toddler stopwatch era,

parental caper, boisterous shriek,

blue stain paddle boat capsized,

guffaws at the peak of silver rush,

backscatter on a prior and current bloom,

like a reckless swimmer’s wild swipe,

at a grazed iron metal lifebuoy,

whose toss and turn gyration high jinx,

another symbol for the heaven in one’s palm,

that vanishes as soon as it clocks in.

Pictures n piece

All mine

As always I value those who read, asses and like this post