Scientists on Reddit

Karl Kruszelnicki

Australian science communicator, physicist and doctor

We retrieved 1 post and 80 comments from u/DrKarlKruszelnicki, all from 2013, most often in r/IAmA.

Best moment

A redditor wrote in r/IAmA

On “I'm Dr Karl Kruszelnicki, AMA!”

Does it ever irritate you to have people call up asking the same question time after time? What is your most disliked question you regularly receive? You're a hero, someone to aspire to be like, and I'm an immense fan :-)

u/DrKarlKruszelnicki replied

Does it ever irritate you to have people call up asking the same question time after time?

Never. One thing I learnt being a roadie for Bo Diddley, after hearing him sing the same songs, night after night. For the audience, it's their first time.

Personal storyr/IAmA · 83 points as of Nov 2026Full thread ↗

More moments

A redditor wrote in r/IAmA

On “I'm Dr Karl Kruszelnicki, AMA!”

Hey Dr Karl! What is the most astounding fact you can tell us about the universe/life in general?

u/DrKarlKruszelnicki replied

What is the most astounding fact you can tell us about the universe/life in general?

1)all the gold you will ever touch was made inside an exploding star 2)Kilogram for kilogram, your compost pile generates 33,000 times more power than our Sun

Explains thingsExplaining things to strangersr/IAmA · 398 points as of Nov 2026Full thread ↗
A redditor wrote in r/IAmA

On “I'm Dr Karl Kruszelnicki, AMA!”

Dr Karl, What is your opinion on the current educational apparatus as relevant to todays needs, especially with respect to the research of people such as Sir Ken Robinson. Do we need an educational seachange, or do you think that the current system is adequate.

u/DrKarlKruszelnicki replied

Education. When I was in Bangkok Airport checking in a group of schoolkids (I was not the teacher, but she was in hospital, so I took over), the person behind the counter asked if I was a teacher. I said…

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Education. When I was in Bangkok Airport checking in a group of schoolkids (I was not the teacher, but she was in hospital, so I took over), the person behind the counter asked if I was a teacher. I said "yes" because it was too complicated to explain full story. She then upgraded me to Business Class. Only when we all treat ALL teachers (childcare to University) with that kind of respect, will the Education System be unbroken.

Personal storyr/IAmA · 272 points as of Nov 2026Full thread ↗
A redditor wrote in r/IAmA

On “I'm Dr Karl Kruszelnicki, AMA!”

what was your strangest experience as a taxi driver?

u/DrKarlKruszelnicki replied

Strangest experience as a taxi driver? Getting lost in the huge Yagoona Tip(garbage dump) at 0200, with no stars to navigate out by, and out of radio range. I had to wait for dawn.

Personal storyr/IAmA · 275 points as of Nov 2026Full thread ↗