This person was researching hummingbirds and the sounds that they make with their tail feathers. He wanted to know how different sized or shaped feathers affected the sounds that the feathers make. He also wanted to know how it would affect the feathers’ sounds if he brought one feather close to another.
After asking all of those questions, he conducted his experiment. He would take different sized or shaped feathers and moved them around with air blowing through them. The air blows left to right, making vibrations, and then leaving a sound. With smaller or skinnier feathers made more high pitch noises, while the bigger or fatter feathers made lower pitch noises. In addition to this, if he moved the feather around, it changed the pitch. He also moved different shaped ones around, like oblong or very straight ones. With the air blowing through the feathers, it made a difference with the shape and made very different noises. Also, when he brought one feather close to another, it amplified the noise, as a result of them being close together. Each feather made a different type of noise.
From the experiment, he (and I, from watching the awesome video) concluded a few things. Mostly, it was that different feathers make different noises. The smaller surface area the feather has, the higher pitched noise it makes. The more surface area the feather has, the lower pitched noise it makes. Also, the more feathers together, the louder the noise is. So overall, size, shape, and number of feathers affect the sound a feather makes when air goes through it.
1. The impact of different size and shaped tail feathers on the sound it produced, and whether or not the feathers interacted with each other were being researched.
2. Feathers were placed in a wind tunnel, in which the wind caused the feathers to vibrate. Different shaped feathers produced different sounds. The orientation of the feather also mattered in some cases (as the feather rotated, a different pitch was produced). Feathers do amplify each other. When they are further away from each other, the sound gets quieter, and when they are closer, it gets louder.
3. This research means that different sizes and orientation of bird's tails produce different sounds.
1. The change in sound made by hummingbird's tail feathers depending on shape and size.
2. Tail feathers were placed in front of a high power wind producing fan and were rotated to detect change in pitch and volume. Also, depending on distance between neighboring feathers, sound could be amplified.
3. It means that different species of hummingbirds want to make different sounds with their feathers in order to attract mates.
This video was about how some birds can make sounds with their tails when they dive, to impress birds of the opposite gender. The researcher wanted to find out how the sounds changed depending on the size and shape of the tails. He also wanted to find out how the tails made that sound.
The researcher conducted an experiment. He put a hummingbird feather in a wind tunnel and it made a high-pitched noise, just like the sound it makes when the hummingbird dives. He watched it in slow motion and saw that the trailing edge of the outside of the feather in the wind was what was making the sound. He tried it with different feathers and determined that different shapes made different sounds. He also tried it with two. This made it louder. The bigger the feathers put together, the louder the noise. That was why the chirp was so loud.
This was something new about how birds tails can produce sounds and about how sound works in general. It might be a new scientific discovery about how sound works, and that if things move fast enough in the right angle they can produce sound. It also shows how birds can different sounds with different shapes, sizes, and numbers of feathers.
1.The person was researching sounds of hummingbirds. He knew that hummingbirds make their sounds with their tails and he wanted to know how the shapes, sizes and different feathers changed/ affected the sound the feathers made.
2.He conducted the experiment by holding different kinds of humming bird feathers in a wind tunnel. The wind tunnel made the feathers vibrate, making sound. He then turned the feathers listening to how the sound changes. He tested this with many different types of feathers. He then added a second feather of the same kind in the wind tunnel together. It showed that the closer the feathers were together the louder of a noise they made. Because of the shape, texture and size each feather made a different noise.
3.This research means that, the size and shape affect the sound a hummingbird’s tail makes. The bigger the feather was the lower the pitch of the sound was and the smaller size feathers made high a high pitch sound. Also, with 2 feathers in the wind tunnel the sound was louder.
1. Chris Clark was reaserching male humming birds and what sounds they make. He wanted to see if the size and rotation of the feather would matter. Also he reaserched if the sound of the vibrations would change if he put two feathers together in the wind tunnel. Chris challenged his reaserch to see if his hypothesis was correct.
2. He first put a feather into a wind tunnel to see what sound it made. Small feathers would make a high pitch sound and a big feather would sound lower. The air flow went left to right. When ever he would rotate the feather the sound would stop and go again. Depending on the size of the feather the pitch would change. The vibration of the feather goes about 1 kilahertz and the 2nd harmonic goes about 2 kilhertz.On another experiment he put two feathers together and whenever he would pull them apart the sound would dim and when they were together the feathers would become louder.
3. In the experiment we learned a few more things about humming birds. Mainly that different sized feathers make different sounds. Also that depending on the angle the feathers would make a different pitch. Next that the closer the two feathes are together the louder the sound. The farther the feathers are the dimmer the sound. Overall the size, number and shape is what effects the singing of the male humming bird.
This person was researching hummingbirds and the sounds that they make with their tail feathers. He wanted to know how different sized or shaped feathers affected the sounds that the feathers make. He also wanted to know how it would affect the feathers’ sounds if he brought one feather close to another.
ReplyDeleteAfter asking all of those questions, he conducted his experiment. He would take different sized or shaped feathers and moved them around with air blowing through them. The air blows left to right, making vibrations, and then leaving a sound. With smaller or skinnier feathers made more high pitch noises, while the bigger or fatter feathers made lower pitch noises. In addition to this, if he moved the feather around, it changed the pitch. He also moved different shaped ones around, like oblong or very straight ones. With the air blowing through the feathers, it made a difference with the shape and made very different noises. Also, when he brought one feather close to another, it amplified the noise, as a result of them being close together. Each feather made a different type of noise.
From the experiment, he (and I, from watching the awesome video) concluded a few things. Mostly, it was that different feathers make different noises. The smaller surface area the feather has, the higher pitched noise it makes. The more surface area the feather has, the lower pitched noise it makes. Also, the more feathers together, the louder the noise is. So overall, size, shape, and number of feathers affect the sound a feather makes when air goes through it.
By Elana
1. The impact of different size and shaped tail feathers on the sound it produced, and whether or not the feathers interacted with each other were being researched.
ReplyDelete2. Feathers were placed in a wind tunnel, in which the wind caused the feathers to vibrate. Different shaped feathers produced different sounds. The orientation of the feather also mattered in some cases (as the feather rotated, a different pitch was produced). Feathers do amplify each other. When they are further away from each other, the sound gets quieter, and when they are closer, it gets louder.
3. This research means that different sizes and orientation of bird's tails produce different sounds.
Why does it matter to hummingbirds what sound their tails produce?
ReplyDelete1. The change in sound made by hummingbird's tail feathers depending on shape and size.
ReplyDelete2. Tail feathers were placed in front of a high power wind producing fan and were rotated to detect change in pitch and volume. Also, depending on distance between neighboring feathers, sound could be amplified.
3. It means that different species of hummingbirds want to make different sounds with their feathers in order to attract mates.
This video was about how some birds can make sounds with their tails when they dive, to impress birds of the opposite gender. The researcher wanted to find out how the sounds changed depending on the size and shape of the tails. He also wanted to find out how the tails made that sound.
ReplyDeleteThe researcher conducted an experiment. He put a hummingbird feather in a wind tunnel and it made a high-pitched noise, just like the sound it makes when the hummingbird dives. He watched it in slow motion and saw that the trailing edge of the outside of the feather in the wind was what was making the sound. He tried it with different feathers and determined that different shapes made different sounds. He also tried it with two. This made it louder. The bigger the feathers put together, the louder the noise. That was why the chirp was so loud.
This was something new about how birds tails can produce sounds and about how sound works in general. It might be a new scientific discovery about how sound works, and that if things move fast enough in the right angle they can produce sound. It also shows how birds can different sounds with different shapes, sizes, and numbers of feathers.
1.The person was researching sounds of hummingbirds. He knew that hummingbirds make their sounds with their tails and he wanted to know how the shapes, sizes and different feathers changed/ affected the sound the feathers made.
ReplyDelete2.He conducted the experiment by holding different kinds of humming bird feathers in a wind tunnel. The wind tunnel made the feathers vibrate, making sound. He then turned the feathers listening to how the sound changes. He tested this with many different types of feathers. He then added a second feather of the same kind in the wind tunnel together. It showed that the closer the feathers were together the louder of a noise they made. Because of the shape, texture and size each feather made a different noise.
3.This research means that, the size and shape affect the sound a hummingbird’s tail makes. The bigger the feather was the lower the pitch of the sound was and the smaller size feathers made high a high pitch sound. Also, with 2 feathers in the wind tunnel the sound was louder.
Moriah
1. Chris Clark was reaserching male humming birds and what sounds they make. He wanted to see if the size and rotation of the feather would matter. Also he reaserched if the sound of the vibrations would change if he put two feathers together in the wind tunnel. Chris challenged his reaserch to see if his hypothesis was correct.
ReplyDelete2. He first put a feather into a wind tunnel to see what sound it made. Small feathers would make a high pitch sound and a big feather would sound lower. The air flow went left to right. When ever he would rotate the feather the sound would stop and go again. Depending on the size of the feather the pitch would change. The vibration of the feather goes about 1 kilahertz and the 2nd harmonic goes about 2 kilhertz.On another experiment he put two feathers together and whenever he would pull them apart the sound would dim and when they were together the feathers would become louder.
3. In the experiment we learned a few more things about humming birds. Mainly that different sized feathers make different sounds. Also that depending on the angle the feathers would make a different pitch. Next that the closer the two feathes are together the louder the sound. The farther the feathers are the dimmer the sound. Overall the size, number and shape is what effects the singing of the male humming bird.
Mariah Mulinazzi