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Nanocosmetics Used Since Ancient Egypt
Roland Piquepaille writes "French researchers have found that Egyptians, Greek and Romans were using nanotechnology to dye their hair several thousands years ago. Nanowerk Spotlight reports they were using lead compounds which generated lead sulfide (PbS) nanocrystals with a diameter of only 5 nanometers. At a moment where many people wonder if the use of nanoparticles is safe, it's good to know that nanotechnology has been widely used for a very long time."
These same people were drinking wine from lead goblets, I don't know if they are the ones we should be looking at for safety advice.
a 100% mortality rate does not bode well for the method...
every day http://en.wikipedia.org/wiki/Special:Random
So just because people used to do something for a long time doesn't necessarily make it harmless.
It's a lot worse than that - every single ancient Egyptian who used this technology has died. With a survival rate of 0% it's no wonder the stuff never caught on.
Please God, grant me the ability to punch Roland Piquepaille in the face over standard TCP/IP.
;)
At least tag this Roland so people with a brain won't waste their time commenting...
Actually, I've been tagging them "pigpile". But I'll add "roland" as well. Thanks!
Stressed? Me? Of course not. Stress is what a rubber band feels before it breaks, silly.
Lead poisoning occurs regardless of the size of the lead particles.
It seems the article poster has a reputation, based on the grandparent comment. If they can try to spin lead poisoning as proof that nano-tech is safe and keep a straight face, they must have spent part of their career working for the tobacco industry.
I do not fail; I succeed at finding out what does not work.
But is it nanoparticularly hazardous?
Sorry, you'll need IPv6.
Also, talking on mobile phones is also safe, since new data has uncovered that ancient Egyptians used to talk as well!
Send email from the afterlife! Write your e-will at Dead Man's Switch.
I read with some skepticism the negative comments[1] regarding Roland Piquepaille, some postulating that some staff member of Slashdot has a secret agreement to accept his submissions.
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Well, now, this takes the cake. Egyptians using nanoparticles? This is news?
Ahem, In Other News
When Gandhi incited civil disobedience against British rule by picking up a pinch of salt from the sea, those sodium chloride particles were less than one nanometre across![2] OMG! The Indians used nanotechnology to overthrow the British!!! WTF! Is this a harbinger of the war-like uses of nanotechnology??? BBQ!!!1!!11!one!1!
Can we have a topic devoted to Roland Piquepaille so that we can adjust our viewing preferences in accordance with the amount of adoration we feel for this Submitter of Many Slashdot Articles?
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Footnotes:
[1]
http://slashdot.org/comments.pl?cid=14501811&sid=
http://slashdot.org/comments.pl?cid=14436063&sid=
http://slashdot.org/comments.pl?cid=14049437&sid=
http://slashdot.org/comments.pl?cid=13236725&sid=
http://slashdot.org/comments.pl?cid=13188470&sid=
[2] (Yeah, I know the actual particles of salt he held were more than 1nm across, but then it dissolved into the sweat from his fingertips, and the salt regrouped into nanoparticles that spread out in a thin layer across his fingertips.)
404555974007725459910684486621289147856453481154 in hex is "You sank my Battleship?"
[GPG key in journal]
hah! that fool is completely ignoring all the available evidence!
Wait, asbestos is bad for you? *cough* I feel fine *hack* I mean its white gold, it can be *wheeze* used for anythi *keels over*
Some people encrypt by using rot-13 twice. I prefer the more secure method of using rot-1 a total of twenty six times.
Haha! The joke is on you! I have oodles of anti-Roland energy, and would normally ignore one of his submissions completely!
But this "pigpile" tag... what could it mean? I was intrigued. I admit it! And now here I am, only to discover that yet another Slashdotter has become besotted with cleverness and witicized himself to inscrutability.
Avast! =D
Looking for a Rails developer in Chapel Hill?
And your nanoancestors used nanoparticulate charcoal sticks to paint their nanocave paintings, while inhaling nanoparticulate nanosmoke from their nanocampfire. Same with crocodiles, who 200 million years ago inhaled the invisible nanodust that floats around in the atmosphere and makes the sky red when the sun sets. So what? Did the romans have sufficient resolution microscopy to actually tell they were dealing with nanocrap?