What is the fastest man-made object ever made?

NASA's Parker Solar Probe. It seems that this space craft has broken its own record on more than one occasion.

[It] reached a ferocious 394,736 miles per hour (635,266 km per hour) as it continues its mission hurtling around the Sun.

That's nearly 400 times faster than a fighter jet and 500 times faster than the speed of sound!

It set the new record on September 27, but scientists have only just been able to confirm it using data sent back from the probe.

https://www.bbc.co.uk/newsround/67132240
News item dated 18 October, 2023

That's fast enough to travel from New York to Tokyo in less than a minute.

Here's a list of the eight fastest man-made objects ever:

https://www.wearethemighty.com/tech/the-8-fastest-man-made-objects-ever/

I would suggest "man-made objects" utilizing electromagnetic radiation, such as the light bulb, radio, X-ray, etc, which have an effect of 186,000 miles per second. At this rate, man-made light and radio waves could travel around the world 7 times at 0.91 seconds. My maff might be off but it's kinda fast.

Human-made email travels at the speed-of-light, so how fast would an email travel to the opposite side of the world from you.