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📡 نمایی از سیارهٔ ناهید از دید تلسکوپ فضایی #پارکر، از فاصلهٔ ۱۲۳۰۰ کیلومتریِ سیاره (۲۱ تیر ۱۳۹۹). این تلسکوپ برای بررسی خورشید و بادهای خورشیدی در ۲۱ مرداد ۱۳۹۷ برای مأموریتی هفت ساله به فضا ارسال شد [🔗]. پارکِر، از گرانش سیارهٔ ناهید [Venus] استفاده می‌کند تا مدارِ خود به دور خورشید را کنترل کرده و هر بار به خورشید نزدیک‌تر شود.

لایهٔ سفید رنگ در اطرافِ سیاره ناشی از انتشار نور از اتم‌هایِ اکسیژن در نواحی بالایِ جَوِ سیاره است (Nightglow). لایهٔ سیاه‌رنگ در قسمت مرکزی سیاره به "Aphrodite Terra" معروف است؛ مرتفع‌ترین ناحیه در سطحِ سیاره. ردهایِ نوری سفید ناشی از پرتوهای کیهانی‌ و ذرات باردار معلق در فضاست. نقطهٔ مشکی در گوشهٔ تصویر به خودِ فضاپیما مرتبط است.— 🌐 — [پست قبل: 🔗]

🛰 @TechX

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📡 نمایی از سیارهٔ ناهید از دید تلسکوپ فضایی #پارکر، از فاصلهٔ ۱۲۳۰۰ کیلومتریِ سیاره (۲۱ تیر ۱۳۹۹). این تلسکوپ برای بررسی خورشید و بادهای خورشیدی در ۲۱ مرداد ۱۳۹۷ برای مأموریتی هفت ساله به فضا ارسال شد [🔗]. پارکِر، از گرانش سیارهٔ ناهید [Venus] استفاده می‌کند تا مدارِ خود به دور خورشید را کنترل کرده و هر بار به خورشید نزدیک‌تر شود.

لایهٔ سفید رنگ در اطرافِ سیاره ناشی از انتشار نور از اتم‌هایِ اکسیژن در نواحی بالایِ جَوِ سیاره است (Nightglow). لایهٔ سیاه‌رنگ در قسمت مرکزی سیاره به "Aphrodite Terra" معروف است؛ مرتفع‌ترین ناحیه در سطحِ سیاره. ردهایِ نوری سفید ناشی از پرتوهای کیهانی‌ و ذرات باردار معلق در فضاست. نقطهٔ مشکی در گوشهٔ تصویر به خودِ فضاپیما مرتبط است.— 🌐 — [پست قبل: 🔗]

🛰 @TechX
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Telegram auto-delete message, expiring invites, and more

elegram is updating its messaging app with options for auto-deleting messages, expiring invite links, and new unlimited groups, the company shared in a blog post. Much like Signal, Telegram received a burst of new users in the confusion over WhatsApp’s privacy policy and now the company is adopting features that were already part of its competitors’ apps, features which offer more security and privacy. Auto-deleting messages were already possible in Telegram’s encrypted Secret Chats, but this new update for iOS and Android adds the option to make messages disappear in any kind of chat. Auto-delete can be enabled inside of chats, and set to delete either 24 hours or seven days after messages are sent. Auto-delete won’t remove every message though; if a message was sent before the feature was turned on, it’ll stick around. Telegram’s competitors have had similar features: WhatsApp introduced a feature in 2020 and Signal has had disappearing messages since at least 2016.

📡 نمایی از سیارهٔ ناهید از دید تلسکوپ فضایی #پارکر، از فاصلهٔ ۱۲۳۰۰ کیلومتریِ سیاره (۲۱ تیر ۱۳۹۹). این تلسکوپ برای بررسی خورشید و بادهای خورشیدی در ۲۱ مرداد ۱۳۹۷ برای مأموریتی هفت ساله به فضا ارسال شد [🔗]. پارکِر، از گرانش سیارهٔ ناهید [Venus] استفاده می‌کند تا مدارِ خود به دور خورشید را کنترل کرده و هر بار به خورشید نزدیک‌تر شود.

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With Telegram, you can send messages, photos, videos and files of any type (doc, zip, mp3, etc), as well as create groups for up to 200,000 people or channels for broadcasting to unlimited audiences. You can write to your phone contacts and find people by their usernames. As a result, Telegram is like SMS and email combined — and can take care of all your personal or business messaging needs. In addition to this, we support end-to-end encrypted voice calls.

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Telegram is a messaging app with a focus on speed and security, it’s super-fast, simple and free. You can use Telegram on all your devices at the same time — your messages sync seamlessly across any number of your phones, tablets or computers.

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Telegram is for everyone who wants fast and reliable messaging and calls. Business users and small teams may like the large groups, usernames, desktop apps and powerful file sharing options. You can appoint admins with advanced tools to help these communities prosper in peace. Public groups can be joined by anyone and are powerful platforms for discussions and collecting feedback.In case you're more into pictures, Telegram has animated gif search, a state of the art photo editor, and an open sticker platform (find some cool stickers here or here). What's more, there is no need to worry about disk space on your device. With Telegram's cloud support and cache management options, Telegram can take up nearly zero space on your phone.

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Unlike WhatsApp, Telegram is a cloud-based messenger with seamless sync. As a result, you can access your messages from several devices at once, including tablets and computers, and share an unlimited number of photos, videos and files (doc, zip, mp3, etc.) of up to 2 GB each. And if you don't want to store all that data on your device, you can always keep it in the cloud.Thanks to our multi-data center infrastructure and encryption, Telegram is faster and way more secure. On top of that, Telegram is free and will stay free — no ads, no subscription fees, forever.

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