'This is not so jumpy!'
Below that would be the word 'tick' or 'tock',
alternating every second.
Under that is a circle with a segment slowly
increasing in size from 0 to 360 degrees.
It differs from the previous example in being
buffered, so doesn't flicker the same way.
So you aren't really missing much.
This applet uses double-buffering to remove the flicker.