No video :(

Hit Me with Your Questions! (Part 1)

Подписаться 73 тыс.

50% 1

‘Hit Me with Your Questions 1 (Part 1)’ is here with my answers to your questions. In part 1 our questions include: 02:18 How can I make alcohol easily at home? 05:36 Why did chemists believe Mendeleev? 11:52 What is the air speed of an unladen swallow? 12:15 Why is an octopus so squishy it can fit under a door? 15:04 Someone’s homework about pollution but also why ‘useless’ lessons are so useful 20:32 Can we really call subatomic particles ‘fundamental’? 24:10 Why do opposite charges attract and like charges repel?, and 28:14 When is a chemical bond not really a bond?
Make sure you subscribe for part 2 and other ‘Hit Me with Your Questions’ videos. If you have any questions you’d like me to answer for next time, just post them in the comments section. If you want a bit more explanation, or if you can explain something better, put that in the comments too.
Image credits:
Thanks to Purple Saptari for the Easy/medium/hard meter.
Patience: Photo by Isabel A Hermosillo on Unsplash
Nautilus: Manuae, CC BY-SA 3.0 via Wikimedia Commons
Fundamental particles: MissMJ, Cush, Creative Commons Attribution 3.0 Unported
Vernier scale: Creative Commons Attribution-Share Alike 3.0 Unported adapted from a picture by Ultraman.
Thanks to Dave Borgeson for the music: Enchanted ©Dave Borgeson
Free resources used in this video:
Video: Da Vinci Resolve - www.blackmagic...
Image editing: www.photopea.com/
Visit us on Facebook or Twitter:
/ sannijuroku
/ sannijuroku
This video was produced at Kyushu University and supported by JSPS KAKENHI Grant Number JP21K02904. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of Kyushu University, JSPS or MEXT.

Опубликовано:

21 авг 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 16

@st4nle509 4 месяца назад

Thank you for all your work, please don't stop making videos.

@purplesaptari5972 2 года назад

It's so cool how Mendeleev got the inspiration for the periodic table arrangement from a card game!

@ThreeTwentysix 2 года назад

And he's not the only chemist to make a breakthrough in a dream. One of his contemporaries, Kekule, worked out the structure of benzene in a dream, which led to a breakthrough in understanding organic molecules (though even molecules were still hypothetical in those days).

@triple_gem_shining 10 месяцев назад

Row row row your boat, gently down the stream. Merrily merrily merrily , life is but a dream.

@eskerbth8266 2 года назад

Should the periodic table also keep going down and down? Could there be something interesting in the undiscovered periods?

@ThreeTwentysix 2 года назад

Good question, thanks!

@slimvictor 2 года назад

I would like you to explain what the fundamental constants of nature are (why are they fundamental? what does that mean? why aren't other things fundamental as well - why only those?) , and what it means link them in an equation / why that is important.

@ThreeTwentysix 2 года назад

Nice question.

@kisho2679 2 месяца назад

Is there a mathemstical method to calculate the amount of energy [eV] of each subshell (s, p, d, f) per shell (n=1,…,7) of an atom in the periodic table of chemical elements; and thus calculating theirs absorbion and emission spectra?

@MarteenMayjer 11 месяцев назад

I'm obsessed with your vids, lol. So now I'm here at this random Q&A. The video is a year old, but figured I'd try anyway. I've been reviewing my gen chem since I have a teaching assignment coming up on the material and currently looking at electron configurations and have come across the annoying transition metal exceptions. I can buy into the whole "full d-subshell is more energetically stable" argument that seems to be the case for some of the exceptions, but the one I've found very unsatisfying is Paladium. My question is - why would Pd exhibit its exception of filling the d-subshell, but Ni or Pt above and below in that column don't? They both have the potential to fill in d-subshells in the same manner by shuffling from the nearest s-subshell. The only thing I can come up with is that the higher the level, the closer the shells, which would account for the Pd vs Ni case, but then doesn't track to Pt. I suspect there's likely some experimental results that show this to be the case and probably some quantum weirdness that chemists/physicists haven't quite worked out yet in an attempt to justify a systematic rule/guideline, but honestly I'm pretty lost lol. Thanks in advance! Hope to hear back :)

@ThreeTwentysix 11 месяцев назад

This is exactly why transition metals are only briefly covered in early chemistry courses. If organic chemistry is full of rules, the transition metals are full of rules of thumb (inorganic chemists may disagree). There are several effects converging thoughout this zone that makes it especially complex. With the noble metals, such as platinum, the sheer size of the atom and the nucleus creates changes in the usual order of things as given by the trends across the 3d metals. I recommend looking up the chemistry of the noble metals, it's very interesting.

@MarteenMayjer 11 месяцев назад

@@ThreeTwentysixthanks so much for the reply! I'll definitely read more about the noble metals and see where that takes me. Super fascinating stuff. Thanks again for all the work you do on these videos.

@Zomrem 7 месяцев назад

Can I ask a question right here (I don't see any clickable set of pixels announcing a portal to question-asking)? If so, here goes. What about the origin of life? Which do you think came first: membranes, metabolism, or information storage? Please elaborate in your answer how evolution by natural selection worked on the first aspect of life to generate the other two. What do you think of Erwin Schrodinger's hypothesis? Thanks and be well, TMH