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Miloslav Ciz 2025-03-12 21:04:56 +01:00
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@ -664,7 +664,7 @@ sin(x) / cos(x) - log2(2) = tg(x) - 1*, so we get *tg(x) >= 1*. So that will hol
123. Constant bitrate means a given time unit of the video will always be encoded with (at least approximately) the same number of [bits](bit.md). One second of the video will therefore take the same size no matter how complex or simple the encoded scene is. Advantages are for example being able to estimate size of any video just from its duration alone, easier seeking and rewinding to a random position, or that during streaming over network there will be a constant number of bits transferred per second, which is very predictable and good for many protocols. Disadvantage may be that sometimes space is wasted (we encode a simple scene with more bits than necessary) and that quality of the video won't be constant (scenes for which bits don't suffice will have to have their quality lowered).
124. Draw the shit on paper: draw a ball (Earth) and a point above it (ISS), then draw a tangent line from the point to the ball. Then draw a line from the ball center to the ISS and from the ball center to where the tangent line touches that ball (the horizon). Obviously there's a right angle at the tangent line touch point, so we have a right triangle. One side is the Earth radius and the longest side is the radius plus the orbit height. From this we compute the remaining side as *sqrt((6378 + 400)^2 - 6378^2)*, which gives us approx. 2293 km.
125. 24 bit RGB is easy: 00ff00. For 565 we want a 16 bit value whose upper and lower 5 bits are zero, with the middle bits being ones, i.e. 0000011111100000 in binary, which is 07e0 in hexadecimal. Similarly for 332 we get 1c.
126. Apparently the expected answer is this: just jump out of the blender. How? If you're so small, you can jump much higher, just like bugs can, as physics on such a small scale work differently (which is why for example elephants can't jump at all while a cat can jump to a height many times its own height).
126. Apparently the expected answer is this: just jump out of the blender. How? If you're so small, you can jump much higher, just like bugs can, as physics on such a small scale functions differently (which is why for example elephants can't jump at all while a cat can jump to a height many times its own height).
127. yes
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