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Originally about tariffs and watches ... now just political rambling
Locked
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Tony C.
··Ωf Jury memberAt room temperature:
Tungsten density = 19.25 g/cm3
Gold density = 19.32 g/cm3
Very close indeed! Which is why Tungsten coated with a thin layer of gold has the potential to pass as gold. But given that there is a big difference between the two metals in terms of celerity (the speed of sound), ultrasonic testing can easily be used to discern real gold.
Tungsten celerity = 5220 m/s
Gold celerity = 3240 m/s
Tungsten density = 19.25 g/cm3
Gold density = 19.32 g/cm3
Very close indeed! Which is why Tungsten coated with a thin layer of gold has the potential to pass as gold. But given that there is a big difference between the two metals in terms of celerity (the speed of sound), ultrasonic testing can easily be used to discern real gold.
Tungsten celerity = 5220 m/s
Gold celerity = 3240 m/s
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coffee
·19 gm per cm^3. Presumably that’s the appeal. Twice as dense as most common non-precious metals, so it would make a good conversation piece/paper weight. Virtually anything else in that range of density is radioactive, extremely expensive, or both.
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ErichPryde
·What have I done
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noelekal
··Home For Wayward WatchesIs this thread a political echo chamber?
Choose only one.
1. No way! Off-topic discussion rules!
2. Echo or reverb? That is the question.
3. Dog pile!
Choose only one.
1. No way! Off-topic discussion rules!
2. Echo or reverb? That is the question.
3. Dog pile!
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p4ul
·Is this thread a political echo chamber?
Choose only one.
1. No way! Off-topic discussion rules!
2. Echo or reverb? That is the question.
3. Dog pile!
Choose only one.
1. No way! Off-topic discussion rules!
2. Echo or reverb? That is the question.
3. Dog pile!
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Porteroso
·That's exactly why many scammers use Tungsten, trying to sell it as gold.
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Dsloan
·Or, say you buy gold abroad, and want to pay less duty when you bring it back, you coat it with tungsten.
I love a fake fake.
Reminds me of an artist friend of mine. He was hired to design a bronze sculpture for an elementary school and had a team of kids help with the design. They ended up with a turtle based on the school's mascot.
The kids then demanded that it be made of gold. My friend says, "but won't people steal it?" The kids go, "no, no, we'll paint it green so no one will know." So, in the end, the kids were pretty excited that their school had a solid gold sculpture hiding under the green bronze patina.
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texasmade
·I love a fake fake.
Reminds me of an artist friend of mine. He was hired to design a bronze sculpture for an elementary school and had a team of kids help with the design. They ended up with a turtle based on the school's mascot.
The kids then demanded that it be made of gold. My friend says, "but won't people steal it?" The kids go, "no, no, we'll paint it green so no one will know." So, in the end, the kids were pretty excited that their school had a solid gold sculpture hiding under the green bronze patina.
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Trev
··The Architect19 gm per cm^3. Presumably that’s the appeal. Twice as dense as most common non-precious metals, so it would make a good conversation piece/paper weight. Virtually anything else in that range of density is radioactive, extremely expensive, or both.
My wife wasn't as enthusiastic about Tungsten cubes and their amazing physical properties.
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Trev
··The ArchitectDon't forget Iridium too:
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ErichPryde
·Have you imparted to her it's pyrophoric properties? Truly, an interesting metal.
Potassium can be a LOT of fun.
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Dsloan
·Potassium can be a LOT of fun.
Indeed. I had a really cool AP Biology teacher and he promised us fireworks if more than 50% of the class passed, which we did. So, after we got the good news, he went into the storage room and proceeded to wheel out a cart with jars of lithium, potassium and sodium, and tried to get us hyped to sign up for AP Chemistry.
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bsowers34
·Indeed. I had a really cool AP Biology teacher and he promised us fireworks if more than 50% of the class passed, which we did. So, after we got the good news, he went into the storage room and proceeded to wheel out a cart with jars of lithium, potassium and sodium, and tried to get us hyped to sign up for AP Chemistry.
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ErichPryde
·Indeed. I had a really cool AP Biology teacher and he promised us fireworks if more than 50% of the class passed, which we did. So, after we got the good news, he went into the storage room and proceeded to wheel out a cart with jars of lithium, potassium and sodium, and tried to get us hyped to sign up for AP Chemistry.
That's pretty funny. I had an AP Chemistry teacher put a decent size piece into a beaker with water.... that was fun 🤣
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ErichPryde
·Well those can't be cheap.
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