iBilib: Submarines vs. Ultrasound Machines
Aired (June 2, 2024): What do submarines and ultrasound machines have in common? Join us as we unravel the connections and unveil the secrets behind these seemingly disparate innovations.
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00:00Dolphins use different senses to eat, move, and talk, and they are one of the inspirations for the high-tech vehicle I'm talking about.
00:15If animals can navigate with the help of echolocation, we have invented sonar used in submarines.
00:23Sonar or sound navigation and ranging is the same echolocation used by animals.
00:29It produces sound in sequence to detect things, track movements, and communicate with other submarines.
00:37Dolphins and whales inspired the sonar of submarines.
00:41Because of these sea creatures, humans invented something.
00:45That's why when you see a submarine going up to the sea, they probably saw the land you are building before you see them.
00:55Let's look at another invention that came from the use of sound.
00:59Sound is its name.
01:02Dolphins use ultrasonic sound waves to create images.
01:07That's also what an ultrasound machine does.
01:10If you have seen an ultrasound of a baby before it was born,
01:15that image was made by a computer with the help of technology that can pick up bouncing sound waves at a high frequency that we can't hear.
01:25The image of the baby is formed.
01:27Because of this, the doctor can be sure that the baby is healthy in mommy's womb.
01:33The sound waves are amazing, Chris! I'm mind-blown!
01:37Mind-blown?
01:40You'll probably be more impressed with my brain-bender question about our brain.
01:46We already have a lot of mind-blowing discoveries about sound waves.
01:49Next, we'll talk about and think about brain waves.
01:54But before that, here's my brain-bender question.
01:57True or false, there are approximately 170 billion cells in the average human brain.
02:05Wow, Chris! That means there are 170 billion cells in my brain?
02:10To visualize how many 170 billion cells there are,
02:15imagine that one of our hands can hold 2 million grains of sand.
02:21If each brain cell is a grain of sand,
02:26you need about 85,000 hands to hold 170 billion grains of sand.
02:34Wow, that's a lot!
02:36If that's the case, my answer to your question is false.
02:41What do you think, iBelievers? Is it false?