#tellurium — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #tellurium, aggregated by home.social.
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Tiny Tellurium Orbits Atop a Pencil - We like scale models here, but how small can you shrink the very large? If you’re ... - https://hackaday.com/2025/06/21/tiny-tellurium-orbits-atop-a-pencil/ #classichacks #cncmachined #clockwork #tellurium #space #brass
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@evelynefoerster Es ist sowieso wahnsinnig, was die früher schon alles so präzis berechnen und herstellen konnten, da stauen ich immer!😲 Sehr gut möglich, dass es wegen quasi kleinen Dingen "harzte". - In Grenchen ist übrigens einer, der ein #Tellurium nachbauen wollte (ich weiss nicht, ob er mittlerweile damit fertig ist), Marc Maradan. Ich kenne ihn eigentlich, habe ihn aber schon Jahrzehnte nicht mehr gesehen. Guck hier auf seiner Webseite: https://www.analog-astronomical-device.ch/tellurium #Antikythera
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China curbs exports of five metals. What are they used for?
China has announced sweeping export restrictions on five metals used in the defence, clean energy and other industries.
Here is what you need to know about them:
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Tellurium (Te), atomic number 52, is a brittle, mildly toxic, rare, silver-white metalloid. Te is chemically related to selenium and sulfur, all three of which are chalcogens.
Major appls include thin-film solar cells (40%), thermoelectrics / thermocouples (30%), metallurgy (15%) and rubber (5%).
CdTe solar cells are the second-most common photovoltaic technology after crystalline silicon, although their efficiency is higher.
https://www.energy.gov/eere/solar/cadmium-telluride
#JWST #Tellurium
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The NASA press release and tweets contain the factoid that tellurium is rarer than platinum on earth. It should be noted that the amount of Te on earth is low because earth lost most of it during its early years due to the formation and evaporation of volatile hydrides of tellurium. Hydrogen telluride (H2Te) is an unstable analogue of the other chalcogen hydrides H2O, H2S and H2Se.
Tellurium is much more abundant in the rest of the cosmos.
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Is this the first detection of tellurium (Te) in interstellar space? Of course not. Te and other heavy elements have been detected before by earth and space based telescopes.
E.g. Hubble detected Te in 2012 in 3 metal-rich stars.
https://arxiv.org/abs/1202.2378A team of researchers detected tellurium and iodine in two planetary nebulae in 2018, using the Gran Telescopio Canarias, and the Harlan J. Smith Telescope, at the McDonald Observatory in Texas.
https://www.iac.es/en/outreach/news/tellurium-detected-one-its-places-origin#JWST #Tellurium
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It is well understood that massive stars synthesize elements up to Iron (Fe) through nuclear fusion. Most of the elements heavier than Fe are forged in highly energetic events such as supernovae and neutron star mergers in a set of nuclear reactions known as the r-process. A slower s-process is also known to generate some heavy elements.
The graphic below shows the cosmogenic origin of elements in the Periodic Table.https://en.wikipedia.org/wiki/R-process
https://www.nhm.uio.no/english/about/organization/research-collections/people/rtronnes/1/epmd/a-n-s-pt/sci19-johnson-periodic-table-nucleosynthesis.pdf
#JWST #Tellurium
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The researchers also did some detective work to figure out the origin of these neutron stars.
It is theorized that they began as two normal massive stars, part of a binary system in a nearby spiral galaxy. One of the stars exploded as a supernova and became a neutron star; both stars were ejected from the galaxy. Later, the other star exploded as well. Several million years later and after traveling 120K light-years, the neutron stars merged.https://www.nasa.gov/missions/webb/nasas-webb-makes-first-detection-of-heavy-element-from-star-merger/
#JWST #Tellurium
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Researchers using the JWST recently detected the heavy element tellurium in the ejecta of two colliding neutron stars whose cataclysmic merger was detected in March this year by several observatories.
Neutron star mergers create gamma-ray bursts, gravitational waves and many elements with large atomic weights.
In the spectral data below, a distinct peak can be seen in the region of the spectrum associated with tellurium.
https://www.nasa.gov/missions/webb/nasas-webb-makes-first-detection-of-heavy-element-from-star-merger/
https://webbtelescope.org/contents/media/images/2023/134/01HAWFJMYS933DDC7NJJE2VFRH
#JWST #Tellurium
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#astronomy #kilonova #GammaRayBurst #NeutronStars #tellurium An article published in the journal "Nature" reports the detection of heavy elements including tellurium ejected from a kilonova, the merger between two neutron stars. A team of researchers started from the gamma-ray burst cataloged as GRB 230307A to examine data collected by ground-based and space telescopes which made it possible to identify the characteristics of a kilonova at the origin of that explosion.
https://english.tachyonbeam.com/2023/10/27/tellurium-generated-by-a-kilonova-was-detected/
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Far from being a prophecy of doom, predictions of catastrophic shortfalls in green minerals forced the market to behave exactly as it should. https://www.japantimes.co.jp/commentary/2023/10/06/world/green-minerals/?utm_content=buffer605f9&utm_medium=social&utm_source=mastodon&utm_campaign=bffmstdn #commentary #worldnews #rareearths #mining #minerals #globaleconomy #greenenergy #lithium #cobalt #tellurium #copper
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Tellurium: atomic number: 52; weight: 127.60; Metalloid; discovery: 1782—Franz-Joseph Müller, Martin Heinrich Klaproth #Poetry #Science #History #Tellurium (https://sharpgiving.com/thebookofscience/items/e052.html)
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This morning in #Mexico many #Android phones will be confusing people by showing the wrong #time. We no longer have #DST, but updating the #tzdata timezone database on most older devices is almost impossible.
Don't worry, just buy a new device. It's easy, Just throw all that silly old #lithium, #manganese, #tellurium, #tungsten and #cobalt in the landfill.
And all for a locked #bootloader.An example of 💩 gle and the phone manufacturing industry being #evil.
#ANNOYED - by google.
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A team including researchers at Argonne and the National High Magnetic Field Laboratory (MagLab) discovered surprising properties in a #magnetic material of iron, #germanium and #tellurium. This material is in the form of a thin sheet that is only a few to 10 #atoms in thickness. It is called a 2D #ferromagnet.
#Physics #Nanotechnology #Technology #sflorg
https://www.sflorg.com/2023/03/phy03302301.html -
Acousto-Optic Filter Uses Sound to Bend Light - We all know that light and sound are wave phenomena, but of very different kinds. ... - https://hackaday.com/2021/09/10/acousto-optic-filter-uses-sound-to-bend-light/ #acousto-optic #piezoelectric #diffraction #laserhacks #tellurium #acoustic #grating #filter #tuning #laser #rf
