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Create: 2025-05-12 Update: 2025-06-27 08:52:10

بر اساس یک مقاله‌ی جدید در جریان دومین دوره‌ی فعالیت این شتاب‌دهنده بین سال‌های ۲۰۱۵ تا ۲۰۱۸ ، پژوهشگران سرن از آن برای برخورد دادن اتم‌های سرب با یکدیگر در سرعتی نزدیک به سرعت نور استفاده کردند. این برخوردها به‌طور موقت حدود ۸۶ میلیارد هسته طلا تولید کردند که معادل تقریباً ۲۹ تریلیونیوم گرم طلا است.

این تبدیل از طریق فرایند “دگرگونی هسته‌ای الکترومغناطیسی” رخ می‌دهد؛ جایی که برخوردهای پرانرژی تنها سه پروتون را از اتم‌های سرب جدا کرده و آن‌ها را به طلا تبدیل می‌کند. اما طلای تازه‌ساخته‌شده تقریباً بلافاصله از بین می‌رود.

اگرچه این فرایند طلای قابل‌استفاده‌ای تولید نمی‌کند، اما توانایی آشکارسازی ذرات زیاد و همچنین رویدادهای بسیار نادر توسط آشکارساز آلیس را به نمایش می‌گذارد.

عنصر طلا ۷۹ پروتون دارد که تنها ۳ پروتون کمتر از سرب است. این بدان معناست که برخوردها در شتاب‌دهنده‌های ذرات برای تولید طلا، تنها به ۳ پروتون از سرب نیاز دارند. از سوی دیگر، حذف یک یا دو پروتون، به ترتیب عناصر تالیوم و جیوه تولید می‌کند…

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کانال علمی بیگ بنگ

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Telegram hopes to raise $1bn with a convertible bond private placement

The super secure UAE-based Telegram messenger service, developed by Russian-born software icon Pavel Durov, is looking to raise $1bn through a bond placement to a limited number of investors from Russia, Europe, Asia and the Middle East, the Kommersant daily reported citing unnamed sources on February 18, 2021.The issue reportedly comprises exchange bonds that could be converted into equity in the messaging service that is currently 100% owned by Durov and his brother Nikolai.Kommersant reports that the price of the conversion would be at a 10% discount to a potential IPO should it happen within five years.The minimum bond placement is said to be set at $50mn, but could be lowered to $10mn. Five-year bonds could carry an annual coupon of 7-8%.

بر اساس یک مقاله‌ی جدید در جریان دومین دوره‌ی فعالیت این شتاب‌دهنده بین سال‌های ۲۰۱۵ تا ۲۰۱۸ ، پژوهشگران سرن از آن برای برخورد دادن اتم‌های سرب با یکدیگر در سرعتی نزدیک به سرعت نور استفاده کردند. این برخوردها به‌طور موقت حدود ۸۶ میلیارد هسته طلا تولید کردند که معادل تقریباً ۲۹ تریلیونیوم گرم طلا است.

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