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🔻یکی از شاهکارهای معماری ایرانی قنات بوده. وقتی راجع به قنات‌های باستانی ایران میخونید مختون سوت میکشه. باورنکردنیه که سه هزار سال پیش توی یزد صد و بیست کیلومتر تونل رو توی عمق زمین حفر کردن تا آب رو در یک‌ شیبِ ملایم مثل یه رودخونهٔ زیرزمینی به جریان بندازن. عمق این قنات بیست متر زیر زمینه. اینجوری آب بخاطر گرما در طول مسیر تبخیر نمیشه. این یعنی یه مهندسی بینظیر و کاملا فکر شده. در طول مسیر این قنات دو هزار تا چاه زدن و‌ باهاش هزاران هکتار زمین‌ کشاورزی رو آبیاری میکردن!

🔹حالا موضوع وقتی جالبتر میشه که بدونید تا الان حدود سی و پنج هزار قنات توی ایران شناسایی شده که خیلی‌هاشون هنوز هم کار میکنن!


•🍃☘ @didYouKonw

بدانیم🌏
🔻یکی از شاهکارهای معماری ایرانی قنات بوده. وقتی راجع به قنات‌های باستانی ایران میخونید مختون سوت میکشه. باورنکردنیه که سه هزار سال پیش توی یزد صد و بیست کیلومتر تونل رو توی عمق زمین حفر کردن تا آب رو در یک‌ شیبِ ملایم مثل یه رودخونهٔ زیرزمینی به جریان بندازن. عمق این قنات بیست متر زیر زمینه. اینجوری آب بخاطر گرما در طول مسیر تبخیر نمیشه. این یعنی یه مهندسی بینظیر و کاملا فکر شده. در طول مسیر این قنات دو هزار تا چاه زدن و‌ باهاش هزاران هکتار زمین‌ کشاورزی رو آبیاری میکردن!

🔹حالا موضوع وقتی جالبتر میشه که بدونید تا الان حدود سی و پنج هزار قنات توی ایران شناسایی شده که خیلی‌هاشون هنوز هم کار میکنن!


•🍃☘ @didYouKonw
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How to Invest in Bitcoin?

Like a stock, you can buy and hold Bitcoin as an investment. You can even now do so in special retirement accounts called Bitcoin IRAs. No matter where you choose to hold your Bitcoin, people’s philosophies on how to invest it vary: Some buy and hold long term, some buy and aim to sell after a price rally, and others bet on its price decreasing. Bitcoin’s price over time has experienced big price swings, going as low as $5,165 and as high as $28,990 in 2020 alone. “I think in some places, people might be using Bitcoin to pay for things, but the truth is that it’s an asset that looks like it’s going to be increasing in value relatively quickly for some time,” Marquez says. “So why would you sell something that’s going to be worth so much more next year than it is today? The majority of people that hold it are long-term investors.”

🔻یکی از شاهکارهای معماری ایرانی قنات بوده. وقتی راجع به قنات‌های باستانی ایران میخونید مختون سوت میکشه. باورنکردنیه که سه هزار سال پیش توی یزد صد و بیست کیلومتر تونل رو توی عمق زمین حفر کردن تا آب رو در یک‌ شیبِ ملایم مثل یه رودخونهٔ زیرزمینی به جریان بندازن. عمق این قنات بیست متر زیر زمینه. اینجوری آب بخاطر گرما در طول مسیر تبخیر نمیشه. این یعنی یه مهندسی بینظیر و کاملا فکر شده. در طول مسیر این قنات دو هزار تا چاه زدن و‌ باهاش هزاران هکتار زمین‌ کشاورزی رو آبیاری میکردن!

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