Create: 2021-06-19 Update: 2025-06-29 01:10:14

📡 رصدخانهٔ ملی رادیویی آمریکا، قرارداد ساخت و توسعهٔ نسل جدید آنتن‌های رادیویی برای #رصد_کیهان رو به شرکت mtex آلمان واگذار کرد. فاز تحقیقاتی تا سال ۲۰۲۵ (سال ۱۴۰۵) ادامه خواهد داشت و سپس ساخت و ساز آن شروع می‌شود. بخشی از تحقیقات علمی در سال ۱۴۰۹ شروع خواهد شد و عملیات کامل حدود ۲۰۳۵ (سال ۱۴۱۵).

مجموعهٔ آنتن‌ها (۲۴۴ تا) معروف به #ngVLA، در آمریکای شمالی گسترده خواهند شد (اغلب در منطقهٔ مرکزیِ آمریکا، کانادا، شمال مکزیک، پورتوریکو [🔗] و در هاوایی). قُطرِ دیش‌ها ۱۸ متر خواهد بود. [۱۱ خرداد ۱۴۰۰] —🌐

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How Does Bitcoin Work?

Bitcoin is built on a distributed digital record called a blockchain. As the name implies, blockchain is a linked body of data, made up of units called blocks that contain information about each and every transaction, including date and time, total value, buyer and seller, and a unique identifying code for each exchange. Entries are strung together in chronological order, creating a digital chain of blocks. “Once a block is added to the blockchain, it becomes accessible to anyone who wishes to view it, acting as a public ledger of cryptocurrency transactions,” says Stacey Harris, consultant for Pelicoin, a network of cryptocurrency ATMs. Blockchain is decentralized, which means it’s not controlled by any one organization. “It’s like a Google Doc that anyone can work on,” says Buchi Okoro, CEO and co-founder of African cryptocurrency exchange Quidax. “Nobody owns it, but anyone who has a link can contribute to it. And as different people update it, your copy also gets updated.”

📡 رصدخانهٔ ملی رادیویی آمریکا، قرارداد ساخت و توسعهٔ نسل جدید آنتن‌های رادیویی برای #رصد_کیهان رو به شرکت mtex آلمان واگذار کرد. فاز تحقیقاتی تا سال ۲۰۲۵ (سال ۱۴۰۵) ادامه خواهد داشت و سپس ساخت و ساز آن شروع می‌شود. بخشی از تحقیقات علمی در سال ۱۴۰۹ شروع خواهد شد و عملیات کامل حدود ۲۰۳۵ (سال ۱۴۱۵).

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