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Kính thiên văn như thế nào? Phát minh kính viễn vọng
Kính thiên văn là một công cụ rất ấn tượng cho thấy các đối tượng rất xa như thể họ là gần chúng ta. Kính thiên văn ngày nay được sử dụng trong một loạt các kích cỡ. Bên cạnh các kính viễn vọng nhỏ bạn có thể chọn từ các cửa hàng đồ chơi, không có giống như kính viễn vọng không gian Hubble, có tấn của trọng lượng. Để nếm thử những gì ấn tượng thiết bị kính thiên văn là, bạn có thể đọc chữ viết tay của 80 mét đi với một kính viễn vọng nhỏ 20cm.
Hiện có hai loại kính viễn vọng trên thế giới. Kính thiên văn phản xạ bằng cách sử dụng ống kính thủy tinh và hệ thống ống kính gương. Mặc dù việc thực hiện với cả hai phương pháp tương tự, họ làm việc theo những cách rất khác nhau.
Để hiểu cách hoạt động của các kính viễn vọng, bạn phải suy nghĩ, tại sao chúng tôi không thể đọc bài viết 80 mét? Câu trả lời là rất đơn giản bởi vì kích thước của incription vào võng mạc của chúng tôi vẫn còn rất nhỏ và không thể đọc được. Nếu chúng ta xem xét mắt của chúng tôi như là một máy ảnh kỹ thuật số, chúng ta có thể thấy rằng văn bản ở 80 mét ra khỏi toàn bộ hình ảnh sẽ vẫn tồn tại một số điểm ảnh và khá xa kích thước có thể đọc. Nếu chúng tôi đã có một con mắt lớn hơn nhiều, sau đó chúng tôi có thể tập trung vào một phần của hình ảnh và đọc bài viết.
Đó là những gì các kính viễn vọng làm việc logic như thế. Ánh sáng đến từ các ống kính tập trung được thu thập tại một số điểm bằng cách phá vỡ hoặc phản ánh với gương và nó xảy ra sau đó rằng nó có vẻ nhiều hơn nữa. Các ống kính được cố định trong mắt người, do đó, chúng tôi không thể phóng to hoặc thu. Những gì chúng tôi có thể làm là chỉ cần tập trung vào một điểm.
Khi chúng ta có một kính lúp trong tay của bạn, chúng tôi thực sự tạo ra một hệ thống kính thiên văn giữa các ống kính phóng đại và ống kính mắt của riêng của chúng tôi.
Ở đây, ánh sáng từ các ống kính được phản ánh trong các ống kính mắt và hình ảnh bây giờ là phóng đại khi nó xảy ra trong các ống kính nhỏ.
Kính viễn vọng có hai đặc điểm cơ bản, đầu tiên là như thế nào nó được ánh sáng, và sau này biết bao nhiêu hình ảnh mất. Chúng cũng phụ thuộc vào độ tinh khiết, chất lượng, gồ ghề, và hầu hết các quan trọng kích thước của ống kính ống kính. Langer ống kính được sử dụng, lớn hơn các hình ảnh thu được.
Lịch sử
Kính thiên văn này là inventered đầu tiên của Hà Lan Hans Lippershey năm 1608 và được sử dụng trong quân sự không gian. Dựa trên các nguyên tắc của sự khúc xạ, kính viễn vọng này là lần đầu tiên sử dụng trong thiên văn học. Họ sử dụng kính thiên văn bao gồm một sự kết hợp của lippershey và Galileo lồi và conccave ống kính. Năm 1611, Kepler bắt đầu sử dụng kính thiên văn phát triển bằng cách sử dụng hai thấu kính lồi. Kính thiên văn sử dụng hệ thống này được phát triển bởi Kepler vẫn là tốt nhất.
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English
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Deutsche
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български
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hrvatski
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čeština
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dansk
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Nederlands
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français
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Ελληνικά
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हिंदी
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Indonesia
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italiano
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norsk
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Polskie
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Português
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românesc
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русский
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slovenský
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español
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Український
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Melayu
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svenska
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ไทย
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Magyar
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việt
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Suomalainen
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