Sujet : Re: Reading 757-3a (archive)
De : jtem01 (at) *nospam* gmail.com (JTEM)
Groupes : sci.anthropology.paleoDate : 18. Dec 2024, 06:19:41
Autres entêtes
Organisation : Eek
Message-ID : <vjtm1d$25nh7$2@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13
User-Agent : Mozilla Thunderbird
Mario Petrinovic wrote:
On 17.12.2024. 2:37, JTEM wrote:
On 12/16/24 6:28 AM, Mario Petrinovic wrote:
These are "microblades", which emerged only recently.
>
They're millions of years old. Millions.
Gee, you really don't get anything.
You're saying this because I pointed out that blades are known
to have been in use for millions of years..
BTW, those sickles resemble blades
They're made up of a number of blades identical to those in use
for millions of years. That's all. They just took a number of
blades of a type produced for millions of years and set them
in wood to create a sickle.
instead of having multiple micro-blades, you can have one long blade.
That is infinitely more difficult, working with flint or
obsidian, than is using multiple blades (or a type produced
for millions of years).
-- https://jtem.tumblr.com/tagged/The%20Book%20of%20JTEM/page/5