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sunshade
A space sunshade or sunshield is a parasol that diverts or otherwise reduces some of a star's radiation, preventing them from hitting a spacecraft or planet and thereby reducing its insolation, which results in reduced heating. Light can be diverted by different methods. First proposed in 1989, the original space sunshade concept involves putting a large occulting disc, or technology of equivalent purpose, between the Earth and Sun.
A sunshade is of particular interest as a climate engineering method for mitigating global warming through solar radiation management. Heightened interest in such projects reflects the concern that internationally negotiated reductions in carbon emissions may be insufficient to stem climate change. Sunshades could also be used to produce space solar power, acting as solar power satellites. Proposed shade designs include a single-piece shade and a shade made by a great number of small objects. Most such proposals contemplate a blocking element at the Sun-Earth L1 Lagrangian point.
In 1989, James Early proposed a space-based sun-shade to divert sunlight at the planetary level. His design involved making a large glass (2,000 km) occulter from lunar material and placing at the L1 point. Issues included the large amount of material needed to make the disc and also the energy to launch it to its orbit.
Condition is used but minimal wear, nearing brand new. Only thing to note is slight imperfections from mounting scope.
All pictures are accurate, sunshade and rings included. Unknown brand or type of rings, but they are solid.
Price: $250
Trade/Partial trade for 9mm ammo
Please contact me if...
NIB Acog 4X32 .223/556m (includes sunshade)
OVERVIEW
The chevron reticle is designed to be zeroed using the tip at 100 meters. The width of the chevron at the base is 5.53 MOA which is 19 in. at 300 meters. This allows range estimation for silhouette targets. Features dual illumination (Fiber...
NIB Acog 4X32 .223/556m (includes sunshade)
OVERVIEW
The chevron reticle is designed to be zeroed using the tip at 100 meters. The width of the chevron at the base is 5.53 MOA which is 19 in. at 300 meters. This allows range estimation for silhouette targets. Features dual illumination (Fiber...
Khales 56mm sunshade 2.5" that I purchased thinking it would fit a Crimson trace scope, but alas its too small in diameter, so instead of it collecting dust this needs to be moved to a good home $35 shipped, now 10 before I toss it
Looks exactly like...
H&R 25-06 ultra hunter comes with Vortex crossfire 6-18x44 AO and sunshade as well as three boxes of once fired brass. I would do $550 cash not interested shipping will do sale at a FFL in Newport and the BGC is on buyers dime . I shot it a few times but now either use the 6.5c or the 243 so no...
swift 6-24x50 Premier 677M scope in mint condition,
made in korea
and i believe this is a older model
been sitting in the safe for years
sunshade included
no ring marks
pm me if interested
15.00 shipping