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Sunset or sundown is the daily disappearance of the Sun below the horizon as a result of Earth's rotation. The time of sunset is defined in astronomy as the moment the trailing edge of the Sun's disk disappears below the horizon in the west. The ray path of light from the setting Sun is highly distorted near the horizon because of atmospheric refraction, making the apparent astronomical sunset occur when the Sun’s disk is already about one diameter below the horizon...

Bangladesh, officially the The People's Republic of Bangladesh, is a country in South Asia. It is bordered by India on all sides except for a small border with Burma (Myanmar) to the far southeast and by the Bay of Bengal to the south. Together with the Indian state of West Bengal, it makes up the ethno-linguistic region of Bengal. The name Bangladesh means "Country of Bangla" in the official Bangla language...

27-year-old Dr. Leonid Rogozov was a member of the sixth Soviet Antarctic expedition. On April 29, 1961 he fell ill. He noticed symptoms of weakness, malaise, nausea, and, later, pain in the upper part of his abdomen, which shifted to the right lower quadrant. His body temperature rose to 37.5°C. Rogozov wrote in his diary: "It seems that I have Appendicitis. I am keeping quiet about it, even smiling...

A POTD is an acronym for "Photo of the Day", "Picture of the Day", "Post of the Day" or "Poll of the Day". It is a term most commonly used by online digital photography communities as an honor to outstanding photos that are selected daily from among that community's membership. They can either be tagged as POTD or displayed in a special page on that site...