Відео

압전소자를 여러개 연결하려면 어떻게 해야하나요

이걸보는 명인중 학생

우흥

와

요호이

Just made this -- works great! Thanks!

Wtf

마지막 실험에서 냉각팬을 하부에 설치하는 이유가 뭘까요? 냉각팬과 방열판을 놓지 않아도 전압을 인가하면 펠티어 소자의 앞 부분은 냉각되고 뒷부분은 가열된다고 알고 있는데 그 효과를 극대화 시키기 위한 목적인가요?

감사합니다~ 잘만들엇어용

네온전구 끼우개를 어디서 구할 수 있을까요..?

108화이팅

바보같은 수찬이는 개추

Ty it help

its so hard because im still ten years old :(

이거 만들고 싶어요 멜로디 원하는걸로 ㅠ

g

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m

m

g

g

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is olive liquid olive oil?

😎The history of the telescope can be traced to before the invention of the earliest known telescope, which appeared in 1608 in the Netherlands, when a patent was submitted by Hans Lippershey, an eyeglass maker. Wikipedia Optical telescopes Optical foundations The invention of the use of concave lenses to correct near-sightedness is ascribed to Nicholas of Cusa in 1451. He was a German Catholic bishop and polymath.😎

How to make a very simple telescope. Visit any shop which sells eye glasses. Buy two lenses. First is plus 1.00 spherical. Call this objective lens. Second is plus 7.00 spherical or higher power. Even plus 13 is also available. Call this eyepiece lens. Next visit any book shop. Buy 4 black chart papers. More if required later. Also get a pair of scissors and black electrical tape. Roll one chart paper into a pipe. Inner hole of this pipe should be smaller than objective lens. Secure the pipe with tape so it doesnt open up. Place objective lens next to one end of this pipe. Secure the lens to the pipe with tape. Roll another chart paper into a tube. Its inner hole should be smaller than the eyepiece lens. Secure this pipe with tape as before. Place eyepiece lens next to one end of this pipe and secure it to the pipe with tape. You can see that eyepiece lens tube will have smaller hole than objective lens tube. Insert open end of smaller tube into open end of larger tube. There will be a gap between the tubes and they will not fit nicely. We want them to fit nicely and also slide with some friction. Take out the smaller tube. Make it thicker by wrapping 2 or more chart papers on it, each secured with tape. Keep increasing thickness of smaller tube until it nicely and somewhat tightly fits into the larger tube and also slides in and out. Telescope is now complete.

Nice vid helped for my homework

I like it

저 비닐봉지의 부피가 1000L정도 할까요? 그리고 저 질량이 200g정도 할까요?

🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉

Lie

Where can i get net from?

실험에대한 질문이 있습니다 두세번째 실험은 제벡효과와 펠티어 효과를 알아보기 위한 실험으로 이해되지만 첫번째 실험 (클립과 구리선)이 어떤 효과를 알아보기 위함인지 잘 이해되지않습니다

응애

Where i can find rivet

What is the ionizated solution??

Thank u a lot 😄 😉

정전봉 대신 배터리 이용해도 될까요??

펠티어 소자를 손에 두었을 때 전압의 변화가 관찰되는 것은 어떤 원리죠?

혹시 알루미늄 컵이 구하기 어려워서 그런데 알루미늄 호일로 대체해도 될까요?

혹시 출처가 어딘지 알 수 있을까요?? 학교에서 실험으로 진행하고 싶은데 정확한 출처가 없어서 여쭤봅니다

this is amazing, so simple so clearly made

❤️❤️❤️❤️😄😄😄😂

does the positive bit work as well?

#freepalastine

I thought it was going to bounce its head in and out?

혹시 어디서 구매했는지 알 수 있을까요!? 만들어 보고 싶어요!

안녕하세요! 영상 내용대로 장치를 만들어보려고 하는데 혹시 플라스틱관, 고무마개 등의 지름이나 사이즈 같은 정보를 얻을 수 있을까요?

Is it in lower limb?