Have You Ever Experienced an Eye-Opening Experiment?

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Discussion Overview

The discussion revolves around personal experiences with experiments that led to significant realizations or "aha" moments. Participants share anecdotes from various contexts, including physics demonstrations, chemistry mishaps, and childhood experiments, highlighting the surprising or enlightening outcomes of these activities.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant describes an experiment with Helmholtz coils that revealed a beam of electrons, leading to a profound realization.
  • Another shares a diffraction experiment where adding light caused unexpected dark areas on the screen, surprising a peer who was familiar with wave theory.
  • Several participants recount dangerous childhood experiments involving homemade gunpowder and chemical mixing, leading to moments of realization about safety and consequences.
  • A participant recounts a high-voltage incident where they received a shock while demonstrating a Jacob's ladder, illustrating the unexpected dangers in experimental setups.
  • Another shares a mishap in an organic chemistry lab involving acetone and fogged goggles, resulting in the destruction of safety equipment.
  • One participant reflects on a demonstration of angular momentum that astonished their classmates, emphasizing the impact of visual learning.

Areas of Agreement / Disagreement

Participants share a range of personal experiences without reaching a consensus on specific experiments or outcomes. The discussion remains largely anecdotal, with various viewpoints on the nature of their realizations.

Contextual Notes

Some anecdotes involve potentially hazardous activities, and participants express varying degrees of understanding and awareness of safety protocols at the time of their experiments.

Who May Find This Useful

This discussion may interest individuals in educational settings, particularly those involved in physics and chemistry, as well as anyone curious about the personal impact of experimental learning.

heman
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Is there any amazing experiment that you have done and which gave you kind of "aha" feelings and opened your eyes...

Like in my first year we did a experiment on helmholtz coils and we finally saw beam of electrons in a dark room whose radius was increasing..this was Physics Experiment..But i am referring to any kind...which you might have observed.
 
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I once had a guy about fall over when I showed him how adding light [opening the second slot] in a diffraction experiment caused some lit areas on the screen to go dark. Funny enough, he knew about wave theory but didn't believe it.

I once got too close to a desktop experiment and took about 25,000 volts up the nose. That was a real aha moment! Made some funny faces too...
 
I once digustic a squash bug at home with homemade equipment.Smelled REALLY bad so ofcource I did my bedroom
 
As a kid I stuffed home-made gunpowder in a metal case open at one end to create a solid rocket aimed towards the river. I lit the fuse and took a few steps back, it exploded quite violently, miraculously leaving me unharmed. "AH-HA! I could have died!" was my revelation. I never played with this again.
 
Orefa said:
As a kid I stuffed home-made gunpowder in a metal case open at one end to create a solid rocket aimed towards the river. I lit the fuse and took a few steps back, it exploded quite violently, miraculously leaving me unharmed. "AH-HA! I could have died!" was my revelation. I never played with this again.
That reiminds me when I was about 5 and I use to mix chemicals in the kitchkin toghter and usaullay dirt.I didn't know what secientfic method was but I just mixed radom togther.I didn't realize how dangeours it was...
 
scott1 said:
That reiminds me when I was about 5 and I use to mix chemicals in the kitchkin toghter and usaullay dirt.I didn't know what secientfic method was but I just mixed radom togther.I didn't realize how dangeours it was...
That reminds me of when I was eight and I was doing the same thing. Unfortunately, I mixed ammonia and bleach together, and ended up spending a month in the hospital.

Wow, I'm a now I'm just lying for no reason.
 
Orefa said:
As a kid I stuffed home-made gunpowder in a metal case open at one end to create a solid rocket aimed towards the river. I lit the fuse and took a few steps back, it exploded quite violently, miraculously leaving me unharmed. "AH-HA! I could have died!" was my revelation. I never played with this again.
I had a very similar experience happen to me (1 year ago today in fact), a very eye opening experience, or in my case, eye closing. A piece of brick shrapnel hit me in the eye, knocking me down and causing the whole area to turn black and swell up so I could not see. It was quite eye opening, analyzing the results of the experiment, me and three other people could have died; things have never been quite the same, that was defiantly an “aha” moment.
 
When I was six, I took the television annetna, and stuck the metal plug in one side of the socket. I made sure to hold onto both sides of the annetna with both hands (so I could complete the circuit:blushing: ). It wasn't really an "aha" moment but a "little kid scream" moment.
-Scott
 
Ivan Seeking said:
I once got too close to a desktop experiment and took about 25,000 volts up the nose. That was a real aha moment! Made some funny faces too...
I built a Jacob's ladder with a variac and a Ford ignition coil and some copper rods. The physics teacher asked me to explain the operation of the apparatus, and I did so in a live demonstration. Unfortulately, somebody asked me how to explain how the arc climbed the gap, despite shorter gap-lengths across which to propagate in the lower sections, and I pointed my finger at the arc. The arc ceased immedialty, entered my index finger, and coursed through my body and exited through my butt to a large rivet in the lab-stool, which happened to be placed such that one metal leg was sitting on the metal cover grounded to the school's electical system. OW! High school can have its high moments. That was not one of them.
 
  • #10
Late one rainy afternoon, in an organic chem lab - there was fog condensing inside my plastic goggles, I was wiping that off every few minutes. You can get glass containers very dry if you rinse them with acetone, because it's very water-soluble and then evaporates very fast. So, I thought, why not get all the condensation out with acetone? So I did.

And that was how my third pair of safety goggles passed on to goggle heaven.
 
  • #11
Ivan Seeking said:
I once had a guy about fall over when I showed him how adding light [opening the second slot] in a diffraction experiment caused some lit areas on the screen to go dark. Funny enough, he knew about wave theory but didn't believe it.

I once got too close to a desktop experiment and took about 25,000 volts up the nose. That was a real aha moment! Made some funny faces too...

Ivan the same thing was with me...
i didn't ever believed whatever i was taught until i saw them really happening towards my eyes..
 
  • #12
Seeing angular momentum demonstrated as a spinning wheel supported like so:
Code:
     |
  |  |   <- rope
--|--|
  |  <- wheel
not just flopping down as expected made pretty much everyone in my class go "holy _#&%"
 

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