View allAll Photos Tagged ruby
The hummingbirds appear to be done breeding and are now spending lots of time feeding in our Hummingbird and Butterfly garden. Captured this Ruby-throated relaxing in the apple tree.
The D.C. branch of the well-known Ruby Foo’s chain opened in 1942 at 728 13th Street NW. Ruby Foo Wong (1904–1950) had opened her first Ruby Foo’s Den in Boston in the late 1920s to great acclaim. More sprang up in New York City before Wong’s brother opened the Washington restaurant. More a supper club than just a restaurant, Ruby Foo’s featured dining on the first floor, dancing and entertainment on the second and “exotic” Chinese décor throughout. In 1943, the second floor was remodeled as a Tahitian Room featuring Hawaiian dancers and jungle greenery. The restaurant suffered a setback in 1950, when cases of colorful Ruby Foo’s matchbooks like this one caught fire in the rear, starting a blaze that resulted in injuries to 13 firemen. The club closed in the late 1950s.
www.allaboutbirds.org/guide/ruby-throated_hummingbird/id
Taken in a township park's butterfly garden.
Ruby-throated Hummingbirds feeding during a summer rain shower, the male feeds first.
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Lancaster County, Pennsylvania
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digiscoped video
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2021 0813 00400500800
image by Team Macho
2008 / May 15th
Ruby Mag Special Issue
this month Ruby has a different issue. all the artists included in issues 1 to 12 were invited to send their newer works and 15 were selected to be part of a special compilation. the chosen artists were: mark rubenstein, maureen gubia, ding ren, takashi iwasaki, riikka sormunen, wendy walgate, celine clanet, michael deforge, betsy davis, jan von holleben, matthew fyeld, andrew laumann, ronnie rascal (donal dixon), frederik heyman and team macho.
The Ruby Mountain Interagency Hotshot Crew, Bureau of Land Management, were assigned to several large fires across the country in 2020. Photo by BLM
In the Northeast, our only breeding hummingbird is the Ruby-throated Hummingbird. Their nest is hard to find (it's a little bigger than a quarter), but is a sight to behold, made entirely of spiderweb encrusted with flakes of lichen -- a masterpiece of engineering and design! For safety from predators, they seem to favor building their nests on branches overhanging water.
Credit: Michael Schramm/USFWS
Ruby Crowned Kinglet. Scientific name: Regulus calendula
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🌳 See also www.flickr.com/clixofnature🐦
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Kinglets are tiny insectivores that actively forage for insect and spider eggs on the undersides of foliage. They weigh less than an ounce and are among the smallest of songbirds. They often hover in front of a branch, gleaning food from its tips and undersides. Kinglets often flick their wings as they move about.
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You rarely see the "ruby" color on their little heads, so I was tickled when I got a tiny glimpse of that on this Ruby-crowned Kinglet. Look very closely.
Ruby-Crowned Kinglet © Kevin Rutherford, Fern Lake Photography. Photo taken on the Flying Circus Birders of Boulder Walk on November 28, 2020.
A Ruby-throated Hummingbird photographed in my backyard over the weekend, seen here feeding from a Petunia. First time this summer I have took to my backyard for these guys. Figures when I went out side all the clouds rolled in and chocked out all my light. Other then that, I was fairly happy with my first attempt of the summer.
© Joshua Clark, All Rights Reserved.
This image is the property of the photographer and cannot be used, printed, downloaded, or reproduced in any way for either personal or commercial use without prior written consent of the photographer.
FOV: 6" wide.
This experiment was an attempt to recreate the fluorescence of chromium activated corundum (aka 'ruby'). Aluminum hydroxide was mixed with 1-4 drops of Cr(III) oxide in a basic solution. This was placed on a small amount of aluminum sulfate in an aluminum foil container and a bit of water was added.
The sample was then heated, first with a propane torch until the water was removed and then with a MAPP gas torch until the aluminum sulfate expanded into foam, trapping the aluminum hydroxide which was calcined into aluminum oxide by the torch's flame. (at least that was the plan)
Shown also is a natural ruby from Mysore, India.
See ruby excitation spectrum here (0.03% Cr):
www.northropgrumman.com/BusinessVentures/SYNOPTICS/Produc...
Contains:
Ruby (FL Red >GR,BL/UVa)
Ruby Foam (FL Red >GR,BL/UVabc)
Shown under UVb light.
Key:
WL = White light (halogen + LED)
FL = Fluoresces
PHOS = Phosphorescent
BL = 450nm, GR = 532nm
UVa = 368nm (LW), UVb = 311nm (MW), UVc = 254nm (SW)
'>' = "stimulated by:", '!' = "bright", '~' = "dim"
Ruby2
24 Dec 2016
Series best viewed in Light Box mode using Right and Left arrows to navigate.
Photostream best viewed in Lightbox mode (in the dark).
18 Watt Triple Output UV lamp from Polman Minerals - Way Too Cool UV lamps