Скачать или смотреть Deep Voice Gases

Deep Voice Gases
𝗜𝗻𝗱𝗲𝘅:
⏲ 0:00 Some gases that change your voice
⏲ 0:52 Why do some gases change your voice?
⏲ 1:16 Air vs Helium
⏲ 1:49 Air vs Sulfur hexafluoride
⏲ 2:05 Other deep voice gases

📫𝐎𝐮𝐫 𝐅𝐁 𝐏𝐚𝐠𝐞:
  / scienceworld-106933907791981  

🎬𝐈𝐦𝐚𝐠𝐞𝐬, 𝐚𝐧𝐢𝐦𝐚𝐭𝐢𝐨𝐧𝐬 𝐚𝐧𝐝 𝐯𝐢𝐝𝐞𝐨𝐬 𝐜𝐫𝐞𝐝𝐢𝐭𝐬:
Pixabay
Pexels

📚𝐃𝐚𝐯𝐢𝐝'𝐬 𝐁𝐨𝐨𝐤𝐬
📕 𝗪𝗲𝗶𝗿𝗱 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗘𝗱𝗴𝗲 𝗼𝗳 𝗜𝗻𝗳𝗶𝗻𝗶𝘁𝘆 𝗮𝗻𝗱 𝗕𝗲𝘆𝗼𝗻𝗱
(https://www.amazon.com/Weird-Maths-Ag...)
📙 𝗪𝗲𝗶𝗿𝗱𝗲𝗿 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗘𝗱𝗴𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗣𝗼𝘀𝘀𝗶𝗯𝗹𝗲
(https://www.amazon.com/Weirder-Maths-...)
📗 𝗪𝗲𝗶𝗿𝗱𝗲𝘀𝘁 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗙𝗿𝗼𝗻𝘁𝗶𝗲𝗿𝘀 𝗼𝗳 𝗥𝗲𝗮𝘀𝗼𝗻
(https://www.amazon.com/Weirdest-Maths...)
** The kindle versions are available
*** For more details : http://weirdmaths.com/

📄𝗧𝗿𝗮𝗻𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻:
We’re all familiar with the squeaky-high voices of people who’ve breathed in some helium gas, for example from a helium balloon. But there are other gases that produce the opposite effect. Breathing in pure oxygen instead of ordinary air will give you slightly lower tones than normal. But to enjoy speaking with a really deep, Morgan-Freeman-like bass, for a few seconds at least, a good choice would be to suck in some sulfur hexafluoride.

A key factor affecting the pitch of a person’s voice is the speed of sound in the gas that passes over their vocal cords. The vibrating cords set up oscillations in the vocal tract, which include the fundamental, or lowest frequency, together with a series of harmonics, or multiples of the fundamental.

The speed of sound in helium is 972 meters per second – nearly three times higher than the speed of sound in ordinary air, which is 331 meters per second. Because speed is proportional to frequency, the result is that when helium fills the vocal tract the frequencies of the resonant harmonics increase several-fold and a much higher-sounding vocal pitch is produced.

The opposite is true in the case of sulfur hexafluoride, in which the speed of sound is a mere 133 meters per second, well under half the equivalent speed in air.

There are other gases in which the speed of sound is much lower than that in air and so would also produce deeper tones. These include xenon, which is extremely rare, chloroform, which would put you to sleep if you breathed it in, and bromine and carbon tetrachloride, both of which are highly toxic.

#deep_voice #helium #sulfur_hexafluoride