Showing posts with label helicopters. Show all posts
Showing posts with label helicopters. Show all posts

Thursday, August 20, 2015

Helicopters

Sometimes people in movies call helicopters "HE-LOs." Why? I don't understand. Shouldn't it be HELIs? Hmm.

After we learned about Leonard Sikorsky and the invention of helicopters (which was interesting…I had never before thought of a helicopter rotor as a moving wing. But it makes sense! Instead of going fast, so the wind will rush over your wing and create lift…you make your WING "rush under" the WIND! Brilliant.) we made a bunch of paper helicopters and tried to learn about which shapes were most effective.

We used this basic template, and then tried every possible variation. Large blades. Long bodies. Looped blades. Thin blades. Thick paper. Twisted paper. And then the children had a heyday dropping them all off of the balcony.

Here you can see them coming down in all their glory.

And here Abe demonstrates some of his design variants.

A few other resources:


Here's a cool helicopter rescue.

And here's an article and video on the group who won, after years and years, the Sikorsky Prize for a human-powered helicopter!

Wednesday, August 19, 2015

Air Med Helicopter Field Trip

The day we studied helicopters, there was a Health Fair (*shudder*) at which the hospital helicopter made an appearance. Therefore, so did we. It was really cool to get to climb inside and see all the controls and equipment.

I remember when I was maybe four, we went to a military Air Show and we got to sit inside a helicopter. I was TERRIFIED. My mom was trying to put me in the helicopter so she could take a picture, and I was scrambling, clinging, grabbing at her. I was absolutely convinced that the helicopter would take off without warning as soon as I was inside.

You'll be glad to hear that I'm over it now. I like being in helicopters. So do my children.
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