View allAll Photos Tagged germanium
Have a Merry Christmas, everyone!
May this festive season sparkle and shine, may all of your wishes and dreams come true, and may you feel this happiness all year round. Merry Christmas!
Your friendship and love are the best gift I've ever received. On this joyous occasion, I send all my love your way. Merry Christmas!
Pink germanium😊
Now that February is behind us ...the anticipation of Spring & its unfolding flowers grows ever keener . This Germanium 'Gerwat' rozanne was unfolding in a local garden on a sunny morning last May ...
Thanks for the visit ....wishing you a happy March :-)
Pelargonium × hortorum, commonly called zonal geranium, or garden geranium, is a nothospecies of Pelargonium most commonly used as an ornamental plant.
Will I once again comb my tresses in the wind?
Will I once again plant pansies in the garden?
And put the germaniums in the sky of the windows?
Will I once again dance on the cups?
Will the doorbell once again take me to the expectation of the voice?
Poetry of Forough Farrokhzad
Translated from Persian
Jungle geranium
yellow Ixora
In Explore, #89
11/29/2023, for Explore Takeover "Yellow"
Featuring in Today’s Explore takeover, which highlights the color YELLOW!
Thank you FLICKR for the honour
Thank you friends and extended Flickr family for the likes and comments!!
This is the cat's whisker on my grandfather's crystal set which he would have used in the 1920's. If it didn't seem like a contraption then it certainly does today. Using the holder on the left the cat's whisker had to be moved across the germanium crystal on the right to find a diode for detection of the radio wave. My father said that once set, the slightest movement could disrupt reception and it would be necessary to find another diode. The terminal at the front right connected to a 100ft wire aerial and tuning was achieved using the white slider in conjunction with the blue waveband selector. The three terminals at the rear were for headphone connection. To my grandfather who was born in 1870 it must have seemed like magic although around the same time he also bought a Ford Model T delivery van.
Date taken: 16/05/09
Location: National Road, Bulag Centro, Bantay, Ilocos Sur
Mabilis siya kaya blurred and kuha.
For Macro Mondays "Rock". I decided simple was best for this shot.
The two specimens are from our family's extensive rock collection - accumulated over four generations! The top one is obviously pyrite, but I'm uncertain what the bottom one is (it was added to the collection before 1950). It looks like pictures of germanium, although germanium is supposedly very rare in ore form. Any ideas?????
By the way, the silver rock is 1.5 inches in it's widest diameter.
I normally do not like to let the background go dark due to flash fall off, but this Sweat Bee was in a tricky spot and I did not want to spook the critter into taking off.
Possibly Halictus sexcinctus.
Tech Specs: Canon 80D (F14, 1/250, ISO 100) + a Canon MP-E 65mm macro lens (set to under 2x) + a diffused MT-26EX-RT with a Kaiser adjustable flash shoe on the "A" head (the key), E-TTL metering, -1 FEC). This is a single, uncropped, frame taken hand held. In post I used Topaz Sharpen AI and Clarity in that order.
Das Dorf St. Michaelis lässt sich erstmals zum Jahr 1348 in historischen Schriftdokumenten auffinden. Das in den Talmulden von Goldbach und Erbisdorfer Wasser angelegte Waldhufendorf befindet sich im Südteil des von intensivem Bergbau geprägten Freiberger Erzlagerstättenreviers. Die ältesten Grubenbauten auf der Ortsflur entstanden bereits im 14. Jahrhundert, wovon jedoch kaum Spuren erhalten blieben. Der Bergbau beeinträchtigte jedoch die Landwirtschaft durch die Anlegung von Schächten und Halden sehr stark, was sich insbesondere auf der südlichen Feldflur im Bereich der Grube Himmelsfürst zeigt, welche im 19. Jahrhundert zu den bedeutendsten Silberabbaustätten Deutschlands zählte. Bekannt wurde die Lagerstätte 1886 durch das im hiesigen Silbermineral Argyrodit von Clemens Winkler entdeckte Element Germanium. Im selben Jahr musste die in der Bergbaugeschichte des Freiberger Reviers ertragreichste Grube allerdings an den Stadt verkauft werden, der mangels sinnvoll verwertbarer Erzanbrüche 1913 den Betrieb endgültig einstellte. Zwischen 1710 und 1896 sind insgesamt über 600.000 kg Feinsilber aus der Himmelsfürster Lagerstätte gewonnen worden. Nach 1945 wurde unter der Wismut der Bergbau nochmals aufgenommen, bevor 1969 die endgültig letzte Schicht in den hiesigen Bergwerksanlagen gefahren wurde. Zu den zahlreichen erhaltenen Denkmalen der Bergbaugeschichte zählt das 1858/59 errichtete Huthaus sowie die 1889 entstandene Bahnviadukt in Gitterträgerkonstruktion.
This is the antenna that will transmit back the first close-up images of the distant Dimorphos asteroid since its orbit was shifted by a collision with NASA’s DART spacecraft.
The 1.13-m diameter High Gain Antenna of ESA’s Hera mission went through a week-long test campaign at the Compact Antenna Test Range, part of the Agency’s ESTEC technical centre in the Netherlands.
The CATR’s metal walls isolate external radio signals while its foam-spike-lined interior absorb radio signals to prevent reflections and reproduce the empty void of space. Each test session took more than 10 hours at a time, with the antenna rotated a degree at a time to build up a 360 degree picture of the antenna’s detailed signal shape.
“The High Gain Antenna is really a crucial part of our mission – it will be our sole means of receiving data and sending commands with the volume we need, with the Low Gain Antenna as backup for low data rate emergency communications” explains Hera antenna engineer Victoria Iza.
Hera system engineer Paolo Concari adds: “Coupled with an innovative deep-space transponder, this antenna will also perform science in its own right. Doppler shifting in its signals due to slight shifts in Hera’s velocity as the spacecraft orbits Dimorphos will be used to derive the mass and shape of the asteroid. But for this radio science experiment to work well, the antenna signal will need to remain stable over time, which means the antenna itself has to maintain its geometrical shape very precisely.”
The High Gain Antenna was manufactured by HPS in Germany and Romania. The company was checking that the antenna’s CATR test performance met mission requirements, comparing the results to simulated radio frequency data.
“The antenna reflector is made of carbon fibre, which makes it very stable and resistant to temperature extremes and general environmental stresses,” comments Fulvio Triberti from HPS. “With a total mass of just 7.5 kg, it is a scaled up version of a smaller model produced for ESA’s Euclid’s observatory, which will operate 1.5 million km from Earth. But Hera’s antenna will need to operate over much greater distances still than Euclid, transmitting and receiving across as far as over 400 million km.”
Located on the exterior of the spacecraft, the High Gain Antenna is especially susceptible to accelerations during launch and the high and low temperatures experienced in space – for added protection against the latter, the antenna will be flown covered in a Kapton-Germanium sunshield that provides thermal isolation while radio waves can still pass through it.
So, as a next step, the antenna will undergo vibration testing at IABG in Germany, to reproduce launch stresses, followed by ‘thermal vacuum’ testing at AAC in Austria, to simulate temperature extremes. Then the antenna will return to the CATR next spring, in order to check that this environmental testing did nothing to degrade its radio-frequency performance.
Antenna engineer Ines Barbary led the CATR test campaign: “The challenge for us has been the very high gain of the antenna, and also its tightly focused directivity – it is a very narrowly focused beam with low side lobes. Our test signals cross less than 2 m from our antenna to the High Gain Antenna within the chamber but our specialist software can transform the signals as if they are travelling across vast distances.”
The High Gain Antenna boosts its signal more than 4000-fold to reach Earth, focused down to only half a degree, so that the entire spacecraft will move in order to line up with its homeworld.
“It’s a fantastic feeling to see flight hardware take shape like this,” concludes Paolo. “And all involved did a great job in making it happen on time, to meet our launch schedule in October 2024.”
Credits: ESA-SJM Photography
All the art of living lies in a fine mingling of letting go and holding on .
--- Havelock Eliis
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These germaniums were brought inside the house from the balcony last autumn ....then surprised us by continuing to bloom all through the winter months . Last week, some cuttings were placed on a mirror that reflected the blue morning sky .... 2 more photos below
I have been waiting for the first frost of the winter before I cut back my germaniums and fuchsias, then I'll put them into the greenhouse, where hopefully they will over-winter.
My dad waited for the first frost, saying it killed off the bugs... and I do the same. He taught me well :)
The pinkish-purple Geranium molle flowers pop against the dark green clover background in Memaloose State Park. Geranium Molle is also known as Dovesfoot Geranium or Dover's-foot Crane's-bill. The flower is tiny. It's smaller than a single clover leaf.
Solar cells for space are typically grown on slices of germanium metal. An ESA General Support Technology Programme (GSTP) project looked into being able to remove and recycle this rare, expensive metal, resulting in much thinner and cheaper solar cells for missions.
The activity tested a method where the surface of the Germanium substrate is treated so that a cavity is introduced just below it. Once a solar cell is grown on the Ge surface, this 0.001 mm thick gap, or cavity, allows everything above it to be removed, leaving just a very thin layer of germanium still attached to the cell – around 10 micrometres thick instead of the previous 150.
This huge saving of weight and volume of a rare material will result in major cost savings, especially when multiplied across the roughly 10 000 solar cells needed for each satellite mission.
For more than a quarter of a century ESA’s optional GSTP has been preparing promising technologies for space and the open market. Read our GSTP Annual Report for 2019 to learn more about programme activities.
Credits: ESA
Opposites :
- germanium / silicon
- bipolar / mosfet
- through-hole / SMD
- old (1968) / new (2008)
Opposés :
- germanium / silicium
- bipolaire / mosfet
- traversant / CMS
- ancien (1968) / récent (2008)
This is Ferberite, Sphalerite, and Quartz from Ayopaya Province, Cochabamba, Bolivia at the Tucson Gem & Mineral Show.
fineart.ha.com/itm/minerals/cabinet-specimens/ferberite-s...
Ferberite, Sphalerite, and Quartz 23 x 17 x 15 cm (9.06 x 6.69 x 5.91 in) From the collection of Daniel "Dan" R. Kennedy.
Ayopaya Province, Cochabamba, Bolivia
This exceptional combination specimen features dozens upon dozens of superb Ferberite crystals that are scattered amongst a field of spectacular Quartz crystals and groups of associated Sphalerite. Complimenting the jet-black color, every Ferberite is incredibly flashy, boasting a strong mirror-luster that is nicely accented by finely striated faces. With the largest crystal reaching 4.0 centimeters, most of the Ferberite crystals have complex shapes with sharply beveled corners and edges. The Quartz crystals are just as impressive with each crystal being resplendent, gem-clear, and heavily striated along the side faces. A small number of Quartz points are partially etched and recrystallized. This piece comes with a custom acrylic base.
en.wikipedia.org/wiki/Ferberite
Ferberite is the iron endmember of the manganese–iron wolframite solid solution series. The manganese endmember is hübnerite. Ferberite is a black monoclinic mineral composed of iron(II) tungstate, FeWO4.
Ferberite occurs as granular masses and as slender prismatic crystals. It has a Mohs hardness of 4.5 and a specific gravity of 7.4 to 7.5. Ferberite typically occurs in pegmatites, granitic greisens, and high temperature hydrothermal deposits.[2] It is a minor ore of tungsten.
en.wikipedia.org/wiki/Sphalerite
Sphalerite is a sulfide mineral with the chemical formula (Zn, Fe)S.[5] It is the most important ore of zinc. Sphalerite is found in a variety of deposit types, but it is primarily in sedimentary exhalative, Mississippi-Valley type, and volcanogenic massive sulfide deposits. It is found in association with galena, chalcopyrite, pyrite (and other sulfides), calcite, dolomite, quartz, rhodochrosite, and fluorite.[6]
German geologist Ernst Friedrich Glocker discovered sphalerite in 1847, naming it based on the Greek word sphaleros, meaning "deceiving", due to the difficulty of identifying the mineral.[7]
In addition to zinc, sphalerite is an ore of cadmium, gallium, germanium, and indium. Miners have been known to refer to sphalerite as zinc blende, black-jack, and ruby blende.[8] Marmatite is an opaque black variety with a high iron content.[9]
Sphalerite is an important ore of zinc; around 95% of all primary zinc is extracted from sphalerite ore.[42] However, due to its variable trace element content, sphalerite is also an important source of several other metals such as cadmium,[43] gallium,[44] germanium,[45] and indium[46] which replace zinc. The ore was originally called blende by miners (from German blind or deceiving) because it resembles galena but yields no lead.[21]
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is, therefore, classified structurally as a framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar.[9]
In the 17th century, Nicolas Steno's study of quartz paved the way for modern crystallography. He discovered that regardless of a quartz crystal's size or shape, its long prism faces always joined at a perfect 60° angle thus discovering the law of constancy of interfacial angles.[20]
www.visittucson.org/tucson-gem-mineral-fossil-showcase/
"Every year the world-renowned Tucson Gem, Mineral & Fossil Showcase is like a time portal, a trip around the world, and a treasure hunt all rolled into one. Every winter, more than 65,000 guests from around the globe descend upon Tucson, AZ, to buy, sell, trade, and bear witness to rare and enchanting gems, minerals, and fossils at more than 50 gem show locations across the city. If you're planning a winter visit to Tucson, you won't want to miss this three-week-long event filled with shows, related events, a free day at the gem & mineral museum, and much, much more!
"Whether you’re looking for a $5 shimmering crystal necklace or a show-stopping $200,000 crystallized rock from an exotic location, the Tucson Gem, Mineral, & Fossil Shows have something for everyone."
www.visittucson.org/blog/post/gems-and-minerals/
The theme this year was Shades of Green- Experience the Magic. The theme for next year's show will be Red, White, and Blue Celebrate the Spirit of Minerals
xpopress.com/news/article/783/shades-of-green-70th-annual...
TGMS 2025
Tucson Gem Show 2025
Looking this close on the raspberry beetle (Byturus tomentosus), it is easy to see how furry it actually is. This one is sitting on the flower of a on woodland geranium (Geranium sylvaticum) with a buddy in the background.
This is my grandfather's crystal set dating from the early 1920s. It required a long aerial, a good earth and a lot of fiddling with the "cat's whisker" to create a diode detector on the germanium crystal. Listening was via headphones connected to the terminals at the front. It was manufactured by the Telephone Manufacturing Company in London but it's made no more!
ID may be suspect but I think this is a Red-tailed Bumblebee (Bombus lapidarius) on Germanium in my Willen garden.
Germanium , for me , is also a symbol of withstanding. It's flowers stand against the cold weather of mountainous region fall.
We had many of them in our yard. Just before snow, my father would bring them in front of of window and let them drink the soul of the sun-light and watch the heavy snow till spring.
Withstand My Father, Withstand!!!
(This photo is taken in last days of fall in my father in law's yard. He does the same as my father.)
Germanium point contact diode glass encapsulated.
One way device allowing electrical current to flow mainly in one direction only.
Developed from the "Cats Whisker detector" used to construct early crystal radio sets.
I spotted this Sweat Bee bedding down in a Geranium flower and I tried twice, early in the morning before work, to get a shot. But it's been so hot lately, 24C (75F) at 6AM, that I could not get close. I guess the third time is a charm because I managed to get the shot that was stuck in my head into the camera.
Possibly Halictus sexcinctus.
Tech Specs: Canon 80D (F14, 1/250, ISO 100) + a Canon MP-E 65mm macro lens (set to 2x) + a diffused MT-26EX-RT with a Kaiser adjustable flash shoe on the "A" head (the key), E-TTL metering, -1/3 FEC). This is a single, uncropped, frame taken hand held. In post I used Topaz Sharpen AI and Clarity in that order. I used my hand to keep the background from being black.
Mon vélo. Un Peugeot acheté en 1985. Intégralement fabriqué en France, dans le Doubs. Plusieurs milliers de kilomètres au compteur ( qu'il n' a pas). Pas de cadre en carbone, pas de boyaux, pas de strontium, ni de germanium dans les jantes (juste chromées). Un formidable outil de près de quarante ans qui me survivra certainement.
Port des Brochets / Bouin / Vendée.