Astronomy
White Hole
In the last two parts we read about black holes. Now we come to the white hole. From the name alone you can surely say it will be the exact opposite of a black hole — and it is.
Md. Ashraful Alam ShemulApril 6, 2020
Color
Mode
In the last two parts we read about black holes. Now we come to the white hole. From the name alone you can surely say it will be the exact opposite of a black hole — and it is.
Md. Ashraful Alam ShemulApril 6, 2020
In the last part we learned some basics about black holes. Now we go deeper inside and meet a good deal of the mathematics — the event horizon, the Schwarzschild radius and Hawking radiation.
Md. Ashraful Alam ShemulApril 5, 2020
It is hard to find anyone who is not interested in black holes. But the subject is not small enough to cover in one article. Let's begin with the basics: what a black hole is, and why not even light gets out.
Md. Ashraful Alam ShemulApril 4, 2020
Today is 29 February 2020! This year is a little different, because February has 29 days rather than 28. Everyone knows that much — but not why the extra day exists. Let's find out.
Md. Ashraful Alam ShemulFebruary 29, 2020
One day to go until the Geminid meteor shower. Around 2 am on the night of 14 December it will be visible from Bangladesh. The Geminids are called the best shower of the year — they come in fast, at an estimated 20,000 metres per second, so they look bright.
Md. Ashraful Alam ShemulDecember 12, 2019