“Excited,” “nervous,” “terrified” — just three emotions described by a group of US teachers about to take a dizzying “weightless” flight all for the cause of science, naturally.
The 30 classroom professionals donned blue “astronaut” jumpsuits to defy gravity in the skies above California, in a project designed to help them capture the imagination of young science students.
On the back of her jumpsuit, teacher Michelle Luke taped a drawing made by her pupils at Manhattan Beach Middle School, southwest of Los Angeles, showing two figures taking a giant weightless leap into space. However, with only a couple of hours to go before the flight, her smile was still a little tense.
“I expect to see a lot of crazy things happening and do things that I’ve never done before,” she said at Long Beach Airport, south of LA, where defense group Northrop Grumman organized the science-boosting flights.
During the flight — in which a specially decked out plane does parabolic climbs and dives, the only way to experience weightlessness without going in to space — the body is subject to 1.8 G forces.
That makes the body feel nearly twice as heavy as it is — the downside in the steep climb phase, before participants fly up off the floor, shrieking as they float around the cabin like astronauts in the International Space Station.
“I’m very excited, a little bit nervous,” said Lewis Chappelear, who teaches engineering and design at North Hills High School, north of Los Angeles.
“I love roller coasters, I love being on boats, but I’m scared that I’m going to get sick. Although I heard that you do not get motion sickness when you’re up there,” he said.
Indeed, trapped inside a windowless Boeing 727 with surfaces covered with bump-defying sponge material, the “astronauts” prefer to forget that the plane is climbing at an angle of about 45 degrees.
Once it reaches 7,600m in altitude, it cuts the power, continuing upwards for another 1,000m before peaking and dropping into freefall, at which point the pilot re-engages the engines.
However, floating in the air — for 20 seconds, when the aircraft is at the top of its parabola — helps them forget everything.
“It was a dream come true for me,” said Amy Rafkin of Belvedere Middle School, who, like her colleagues, used the 12 parabola-topping weightless spells to carry out experiments that she can show her pupils.
With relatively brief periods of zero gravity, the experiments are inevitably simple: They include testing how various liquids or a gyroscope respond to the plane’s changing environment. Participants can also test Isaac Newton’s Laws of Motion, in activities recorded on video camera so teachers can use the taped experiences to help fire up the students’ interest in the classroom.
“It shows them that science is actually applicable. Because in general, they sit in the classroom and say: ‘Oh great, but what am I gonna do with it?’ But this is actual application of science in the real world,” Rafkin said.
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