Ehsan retweeted
More than a thousand years ago, Maya dental specialists were creating decorative tooth inlays with a level of precision that still impresses researchers today.
They carefully drilled small cavities into living teeth and fitted pieces of jade, turquoise, pyrite, and other minerals into the openings.
The work was not simply a rough attempt to push stones into enamel.
The holes were shaped with care, and the inlays were secured using durable cements made from mixtures that included plant resins, mineral materials, and other organic compounds.
Modern chemical analysis has found ingredients with antibacterial, antifungal, or anti-inflammatory properties in some of these ancient adhesives.
That may have helped protect the tooth and surrounding tissue while keeping the decoration in place.
The strongest evidence of their skill is that some inlays have remained attached for centuries.
Researchers believe the practice was usually decorative or connected to identity and status rather than a treatment for damaged teeth. It also appears across different levels of Maya society, suggesting that dental modification was not reserved only for rulers.
Imagine the knowledge required.
The specialist needed to drill without breaking the tooth or reaching the sensitive pulp. The stone had to fit the cavity. The adhesive had to hold in a wet mouth exposed to pressure, food, and bacteria every day.
This was accomplished without electric tools, modern anesthetics, or synthetic dental cement.
Ancient dentistry is often described as primitive because it lacked modern equipment.
The Maya evidence tells a more complicated story. Their methods combined craftsmanship, botanical knowledge, mineral science, and an understanding of the human tooth.
What looked like jewelry was also an extraordinary technical achievement, small enough to fit inside a smile and strong enough to survive for a millennium.
#archaeohistories
Ehsan retweeted
وقتی میتواند سپاه را با بلوکوس دریایی خفه کند، وقتی میتواند گلویشان را آنقدر بفشارد تا جان از ماتحت شان بیرون رفته و تسلیمشوند، چرا باید زیر ساختهای کشورمان را بمباران کند؟
Ehsan retweeted
منو با هرکسی نمیبینی ...
پس اگه با کسی دیدی، یا آدم حسابیه یا آدم روزای سختم بوده !!!
Ehsan retweeted
یه آرشیو از عکس افغانی در لباس نیروی سرکوب و شرکت در مراسم حکومتی درست کنیم. عکسهاتون رو همینجا منشن کنین.
#KingRezaPahlavi #CyrusAccords
Ehsan retweeted
اگر شما هم #راضی_نیستید از پول مالیاتتان به اینها حقوق بدهند، #ریتیوت کنید.
Ehsan retweeted
عکس سمت راست مربوط به المپیک قبلیه که اونجا کیمیا علیزاده موفق شد ناهید کیانی رو شکست بده و ببینید که چطور سعی داره دلداریش بده و اما عکس سمت چپ که برای بازی امروزه و نیاز به توضیح نداره؛ شما فقط به تفاوت رفتار ۲ قهرمان در موقعیتهای مشابه نگاه کنید.
Ehsan retweeted
Hold on, before you think it is another Bitcoin explainer... This isn't THAT kind of post 👀.
Do you know why people were so desperate for a change in the banking system that they came up with the idea of cryptocurrency?
Hit play below! 📺
Ehsan retweeted
آقای #زاکانی لطفاً کلید نشان ندهید شما چنان قفلی بر در این مملکت زدید تا زنده هستیم باید تاوان خیانت شما را بدهیم
Ehsan retweeted
دستی ک بهت محبت میکنه رو گاز بزنی
فردا روز دستی رو باید ببوسی ک مدام میزنه تو سرت!
هرچقدم بگی من زیر بار این چیزا نمیرم زندگی مجبورت میکنه...
طبیعت بی رحمه
Ehsan retweeted
وقتی توییتی تواین پیج زده میشه مخاطبش تمومدخترا نیستن تویی که قدر تن بدنتو میدونی تویی ک درس میخونی کار میکنی اویزون جیب پسرا نیستی تویی ک ب رابطه و مرد زندگیت تعهد داشتی و داری و...قطعا جز اوندسته دخترایی نیستی ک ما اینجا ازشون مینویسم
دم شماها گرم🙌




























