geekpeeps
geekpeeps t1_jdukpeb wrote
Reply to comment by jaker1215 in Does living in an airplane flight path, near an airport, pose a health risk? What happens to the lead from the jets fuel? by [deleted]
Agreed. Jet A1 is just clear Kerosene. Avgas has lead but is rarely used and not in commercial flights because it’s so expensive.
geekpeeps t1_jb80aoa wrote
Reply to US teen Jordan Stolz is first man to win three individual golds at speed skating worlds | Speed Skating by carnifex2005
Huh, I thought this was already achieved, but perhaps not… https://en.m.wikipedia.org/wiki/Johann_Olav_Koss
geekpeeps t1_j59xqzw wrote
Reply to Dolphins swim in Bronx River – “This is great news — it shows that the decades-long effort to restore the river as a healthy habitat is working." by elbaekk
The restoration of the habitat is great. I’m a bit concerned that it’s warm enough for dolphins at this time of year.
geekpeeps t1_j0b96fx wrote
Reply to Will my kids inherit the genetic mutations that I aquire during my lifetime? by RedditScoutBoy
No, unless they are exposed to the same environment and do not undergo treatment, e.g. if you have a predisposition to cancer resulting from consuming alcohol, your children are unlikely to develop similar cancers if they don’t drink.
Ditto skin cancer, or mutations due to radiation.
geekpeeps t1_iy9jsss wrote
Reply to comment by Any-Growth8158 in ELI5: why 2 hydrogen atoms hold more energy and less mass than 1 helium atom? by TheLapisBee
It’s about the interactions between the two as they move away and toward each other. Helium will have complete a electron shell and the nucleus is basically at rest. Hydrogen as (H - H) is stable but reactive. Helium is inert.
geekpeeps t1_iy9gdbf wrote
Reply to comment by drafterman in ELI5: why 2 hydrogen atoms hold more energy and less mass than 1 helium atom? by TheLapisBee
And the two hydrogens (now a molecule) have more energy because of the intermolecular forces - as the hydrogens oscillate (kind of) their movement towards and away from one another is more energetic than the helium atom just on its own.
Edit: there is a quantum chemistry exercise in calculating the variations in energy between a hydrogen 2+ molecule (two protons sharing an electron) and 3D mapping the changes. It was much more difficult without the internet and digital graphing available nowdays.
geekpeeps t1_ivw72wf wrote
Reply to comment by recorkESC in Hostility over pride flag at Auckland school spurs suburb to fly 300 of them by giblefog
That’s the way of NZ. Take no prisoners.
geekpeeps t1_je1qx7x wrote
Reply to comment by icantbearsed in [homemade] pigs in a blanket by rocket_gun
I’m from Australia and thought the same thing. This is more ‘pig in duvét’ :)