"What Are These Sets Of Seven Dimples On Styrofoam?"
Answer: "While many plastic objects have little marks on them where the liquid plastic is injected into the mold, expanded polystyrene objects ("Styrofoam") aren't made this way. Instead, small granules of plastic are pre-treated with steam in a large hopper, which causes them to expand into little foam pellets. These foam pellets are poured into the mold, and then additional steam is injected in, causing the pellets to swell even more until they completely fill the mold. The little seven-dot marks are steam injection points."
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Vonna 3 year s ago
#16 is called a spall-burst. Comes from either most likely a bb or less likely a pellet gun. Since "glass" is incredibly dense yet brittle the energy from such a tiny object striking at high speed this is what glass does to dissipate and release the energy. And, yes I am a glass expert. thomastheglassexpert really.
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Amos 3 year s ago
#13 They're not that common...
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Nana 3 year s ago
#18 looks like a carbon copy book to me. I remember using them. The had black pages with alternating white pages in between. You would place a sheet on top of the black and one below it and you could write 2 copies at once. The alternating white sheet was a protector to not ruin the next black copy sheet.
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Myrt 3 year s ago
Nana,
Pretty sure you are wrong.... the black/blue pages in those are thin. photo looks more like an album.
Pretty sure you are wrong.... the black/blue pages in those are thin. photo looks more like an album.
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Frank 3 year s ago
#3 The circular slide rules are even better.
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Suzie 3 year s ago
Frank,
Better... er... what? That would depend on the specific function of the slide rule. I used these in an engineering drawing office early 70's
#56... That is what is left after removing a metal screen that was painted at one time
Better... er... what? That would depend on the specific function of the slide rule. I used these in an engineering drawing office early 70's
#56... That is what is left after removing a metal screen that was painted at one time
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Myrt 3 year s ago
#54
came with firearm accesories... Probably a wick for old gun.
But the two things can look more or less identical.
came with firearm accesories... Probably a wick for old gun.
But the two things can look more or less identical.
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Flossy 3 year s ago
#33 is most certainly a door for removing soot from the chimney. The chimney was installed after the house was built (you can see the roof is cut and that it is placed outside the wall), and there will most likely be a fireplace on the other side blocking access to any door on the inside.
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Woody 3 year s ago
#11 ceramics is right, but based on the picture... the residue is on the top of the mug, so it is probably condensed steam. If it was along the bottom where the fluid is, perhaps.
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Avarilla 2 year s ago
#22 Seriously? Not to wipe your @$$?
Pretty sure you are wrong.... the black/blue pages in those are thin. photo looks more like an album.
Better... er... what? That would depend on the specific function of the slide rule. I used these in an engineering drawing office early 70's
#56... That is what is left after removing a metal screen that was painted at one time
came with firearm accesories... Probably a wick for old gun.
But the two things can look more or less identical.