What is the definition of Evening Experiments?

"Evening experiments" is like the curious after-hours phase of scientific exploration where scientists, or rather, their enthusiastic amateur hobbyists, conduct experiments under the cloak of darkness, armed with nothing but a flashlight and a sense of adventure. It's the kind of thing where you might try to grow your own unicorn tail or test if cats can read human emotions through their moonlight paws.

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Now, here's a gloomy example sentence for you: "In the dead of night, our evening experiments revealed that the moon's gravitational pull could cause a 90% increase in our local raccoon population's fear of human laughter."