r/TheRestIsScience

If one day we moved to the Moon, or Mars, would we need to design a native clock and calendar? Are there any flaws with our current methods of telling the time and date that we can make better?

Whenever my 5 year infant nephew asked “why is the sky blue?” my uncle explained scientifically about the wavelengths, the atmosphere, and the light absorption, and he said even though the kid didn’t understand it , it would trigger his scientific curiosity when older. Did you grow up like that or do that to your children? Do you think it’s true?

Here Javi from Argentina! We love your show down here as well (thanks for the wink at southern hemisphere Michael did on the north pole episode!)

Sometimes when I type a paragraph on my phone or computer I find myself accidentally leaving a space at the end that is not only unnecessary, but completely invisible unless you navigate over it. This surely amounts to some amount of data stored on computers, phones, and clouds throughout the world. Altogether, would it be a lot? I imagine it would be less than a GB.

Hearing about the 1.7 million year old foot bone showing signs of cancer made me wonder, what other diseases have been with humans for a very long time?

Then with regards to infectious diseases, do we know of any that existed but went away before modern interventions? Or do such diseases tend to stay around forever once they're here? Are infectious diseases more or less likely to persist in the modern age compared to thousands or hundreds of thousands of years ago?

Would an alien with eyes likely have red, green, and blue cones (according to some characteristic of light itself) or is it pretty arbitrary? What would they see if they looked at one of our screens?

Due to the ongoing battle with a fly in my room, I just went out to buy some fly paper, because now it's a case of woman vs beast. I've just put it up and that stuff is extremely sticky. So that made me wonder, what is the stickiest substance known to humankind?

I was watching the recent episode about Michael’s watches and had to pause to think about his watch that only reads “n:ow”. I thought it was a bit dishonest because for Michael to say “now” since he was going through multiple points in time while sawing it. This makes it so that he is referring to multiple “nows”. My question is: exactly how many “nows” are there in the time he said “now”? Are there infinite or is there a finite amount?

Right from my childhood I was average at maths. I loved the ideas but when it came to actually solving and getting the answers correct, I would suck. But I always thought thats because I am not one of those people who is good at maths and slowly I started fearing the subject. The question asked in the episode was so relatable to me and maybe Hannah’s response was the little push I needed to stop doubting myself.

Verbally or written. How long did it take? I'm starting my infinite counting tomorrow.

Earlier today Dan McClellan posted this video. I don't know if this is in the spirit of the subreddit or if it doesn't break the rules.

Obviously a 0.01% ABV beverage would still have a net hydration effect on your body and the diuretic effect would be minimal. Stronger solutions like a 7% ABV beverage have a net dehydrating effect on the human body.

So is there a threshold ABV where the diuretic effect begins to have a net dehydrating effect? Are we talking too low to even intoxicate or is it more in the realm of extremely light beer?

You know the feeling when you walk into your house and you can just tell that no one is there? What is that? How can we tell? Is it subconscious clues or is there a bodily sense involved? Is it just the subtle lack of noise? Can we somehow detect the lack of human movement in the vibrations in the air? Does our proprioception play a role?

If there have been any studies on this I’d love to know.

I saw a video of the world record for the highest dive into water being around 75 metres. It got me thinking about how water effectively becomes more like concrete to land on, the higher up you dive from. So if someone was to dive from the top of the world’s tallest building, what sort of material would they need to land on to survive? Excluding a massive net/air cushion, my head instantly went towards jelly/jello but that would be worse than water surely!
Love the show!

Edit:
When I thought of this question I was thinking of non-traditional landing surfaces e.g. a pool of candy floss or some sort of super absorbent gunge lol. Loving the answers though

Could I save Shrek as a Movie to my cell using genetic engineering combined with Adeno Accociated Viruses ?