انجمن علمی ستاره‌شناسى | United States America (US)

Create: 2023-06-10 Update: 2025-07-03 09:14:48

فیروز نادری، مدیر پیشین آزمایشگاه پیشرانش موشک ناسا که نقش چشمگیری در موفقیت مریخ‌نوردهای روح و فرصت داشت، چشم از جهان فروبست.

▪️او در طول بیش از ۳۰ سال فعالیت خود در ناسا، خدمات بسیاری را در راه پیشرفت علم و کاوش‌های فضایی انجام داد. به پاس سال‌ها فعالیت های درخشان نادری، در سال ۲۰۱۶ سیارک EL1-1989 رسما به نام "نادری - 5515" نام‌گذاری شد. او همچنین جوایزی چون مدال رهبری برجسته ناسا را به پاس خدماتش دریافت کرده بود.

▪️انجمن علمی ستاره شناسی این ضایعه دردناک را به همه دوستداران کاوش‌‌های فضایی تسلیت می‌گوید.
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انجمن علمی ستاره‌شناسى

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1.0K viewsJun 10, 2023 at 18:14

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انجمن علمی ستاره‌شناسى

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Should I buy bitcoin?

“To the extent it is used I fear it’s often for illicit finance. It’s an extremely inefficient way of conducting transactions, and the amount of energy that’s consumed in processing those transactions is staggering,” the former Fed chairwoman said. Yellen’s comments have been cited as a reason for bitcoin’s recent losses. However, Yellen’s assessment of bitcoin as a inefficient medium of exchange is an important point and one that has already been raised in the past by bitcoin bulls. Using a volatile asset in exchange for goods and services makes little sense if the asset can tumble 10% in a day, or surge 80% over the course of a two months as bitcoin has done in 2021, critics argue. To put a finer point on it, over the past 12 months bitcoin has registered 8 corrections, defined as a decline from a recent peak of at least 10% but not more than 20%, and two bear markets, which are defined as falls of 20% or more, according to Dow Jones Market Data.

فیروز نادری، مدیر پیشین آزمایشگاه پیشرانش موشک ناسا که نقش چشمگیری در موفقیت مریخ‌نوردهای روح و فرصت داشت، چشم از جهان فروبست.

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