Educator How-To: We’re batty for ornithopters

Bats have frightened, awed, and inspired for millennia. Leonardo da Vinci used the bat’s amazing wing structure as inspiration for his version of the ornithopter — a machine which flies using flapping bird-like wings. No one knows for sure if he ever built or tested his invention, but Cardanus, a contemporary of Leonardo wrote that he had tried, “in vain”, to get the orinthopter aloft.

A sketch of Da Vinci’s ornithopter

Here is a version of Leonardo’s creation that you can try your hand at constructing and flying. Our version is technically a glider, but looks much the same as Leonardo’s ornithopter design.

Materials:

  • Cardstock copy of orinthopter template
  • Large plain craft stick
  • Paper clips – large and regular size
  • Craft glue
  • Scissors
  • Scotch Tape ™
  • Markers
  • Thin hemp-type string
  • 18th inch hole-puncher
  • Bat specimen or pictures of bats
  • Picture of Leonardo’s orrnithopter

Building the Ornithopter:

  • Display the picture of Leonardo’s ornithopter and discuss how he came up with the design idea after spending a great deal of time observing birds.
  • Study the bat specimen and/or bat pictures. Compare and contrast the bat wings with the ornithopter wings: Are the wings more bird-like or bat-like?
  • Color a large craft stick using a brown marker.
  • Color the wings and tail on the orinthopter template and carefully cut out the pieces.
  • Give the wings shape by closing the small V-shaped notch on each wing so that both pieces touch and then securing on the underside with transparent tape.
  • Using craft glue, attach the wing and tail pieces to the craft stick as illustrated by the picture below. Allow time for the glue to dry.

Bat Orthinopter 2

  • Next, bend the wings up along the large V in the wing pattern and carefully crease.
  • Use a 1/8th inch hole-puncher to make small holes just to the inside where the wings were taped to give them shape.
  • Use a piece of thin string to create a loop through the holes with a loose knot to secure it in place. This serves to keep the wings from spreading too far and to adjust the wings up when tightened.

Bat Orthinopter 1

  • It’s time to test the ornithopter! Make different sized paper clips available. Use these to properly distribute the weight of the ornithopter for better flight.
  • Spend time re-engineering the after the primary test flight.

Dead Man’s Party – Dia de los Muertos

Dia de los Muertos artwork by one of our hmns bloggers!

Halloween is this Saturday and everyone is scrambling to put together their costumes and figuring out what parties to go to Friday and Saturday. But what are your plans for Dia de los Muertos on November 2nd!?

The education department here at HMNS offered an encore event to last year’s very popular Dia de los Muertos Educator Overnight and teachers came from all over the greater Houston area to learn about this incredible holiday and how to do some activities with their own students so that they may learn more about the culture. If you want to learn how to make sugar skulls check out this guide online – it has some great tips on how to make some incredible shaped sugar treasures!

Above you’ll see an artwork that references La Calavera Catrina, an etching done by Mexican printmaker Jose Guadelupe Posada in 1913. La Catrina and some of Posada’s other artwork is reproduced and can be seen around town available on book bags, t-shirts and in jewelry – especially around Dia de los Muertos. This piece pictured here is composed completely out of dyed eggshells by one of our very own hmns bloggers!

Below are some of the fun hands on activities and projects the teachers did at the Overnight this year and don’t worry – we’re already thinking up some cool ideas for “Dia de los Muertos II – the Overnight Sequel for Educators” – next October! Drop me a line if you want to receive notice when we start accepting registrations for this Overnight in 2010 – overnights@hmns.org.

Decorating sugar skulls
Decorating sugar skulls
Calacas puppet in progress
Calacas puppet in progress
Cigar box altar
Cigar box altar
This tiny clay skull is perfect for a tiny cigar box altar table!
This tiny clay skull
is perfect for a tiny cigar box altar table!
Completed sugar skulls!
Completed sugar skulls!