2011年4月21日 星期四

Lemon lamp a bright idea

Lemon lamp a
bright idea
When life gives you lemons — make electricity.Under efforts of
led spotlight boosting the viability
of LED luminaires, many companies are expanding high-power selections.
Well,
that’s what 10 year old Gabe Davey must have heard, because instead of fixing a
refreshing summer drink, the Claude E. Garton Public School student MacGuyvered
a lamp using little more than the sour fruit and an LED bulb.
Davey’s
experiment was one of over 100 science projects on display at Lakehead
University’s C.J. Sanders Fieldhouse gym on Tuesday. The Northwestern Ontario
Regional Science Fair had students from grades 4 to 12 from across the region
showcasing a diverse range of experiments.
“My goal in this was to examine
how many fruits it would take to light the bulb, and my question was what fruit
would take the least,” explained Davey, who pitted lemons, oranges and
grapefruits against each other in a battle of citrus supremacy.
Lemons came
out on top with only three needed to light up the bulb.
Fionna Fenlon’s
eye-catching experiment titled “How Haunted is Your House?” dealt with a phantom
of the energy kind — the electricity that household items waste even when turned
off, often referred to as phantom energy.
“It’s nothing about Ghostbusters,
sorry to disappoint,” Fenlon joked before explaining the worst perpetrators of
phantom energy,Light up the architecturally table lamps interesting parts of your home.
such as old TVs, desktop computer towers, and laptops that are kept plugged in
after they have finished charging.
Fenlon, a Grade 10 student from Sir
Winston Churchill high school, tested different electronics using a voltmeter
and said that by unplugging rarely-used electronics, money can be saved and our
carbon footprint can be reduced.
Students could choose any topic they
liked,Although this article shows that Cree's led lighting and Philips LED product
sales are not equal it is important to note that Philips LED sales and like
Fenlon, many had an environmental angle. Proof of the importance that
environmental protection was on the students’ minds.
For the record, there
were no exhibits either proving or disproving the existence of ghosts, so that
mystery still remains.While SmartView has been slow DSTT and unstable in the past, it seems to
have improved greatly with recent updates.
Chelsea Kubinec’s experiment may
have lacked a fun prop like a vinegar-fuelled volcano — and yes, there was a
volcano — but her experiment on how age correlates with gender stereotyping was
just as intriguing.
Kubinec said she was bothered by the way gender is
portrayed in marketing as well as the stereotypical jokes she heard from others,
so she created a survey that tested people’s beliefs based on their age.
“I
focused on gender stereotyping because I hear so many people make stereotypical
jokes, so I wanted to make people aware that they are hurtful, and I wanted to
display it with actual results,” Kubinec explained.
The St. Ignatius High
School student found that older adults tend to believe gender stereotypes, but
that the trend rapidly declines for the 17- to 24-year-old demographic, a
promising result to be sure.
Michael Kisro, a Grade 6 student from Sacred
Heart School in Sioux Lookout, built a miniature steam-powered boat using only
copper tubing and a candle to propel it forward, demonstrating the properties of
steam and water pressure.
“I wanted to do a steam train but that would be a
bit harder,” said Kisro, who spent one day building the boat and another two
constructing his board of information.
Brendan Sawanas and Kansis Mandamin,
two grade 10 students from Thomas Fiddler Memorial High School, ran a series of
tests to see if humans could develop echolocation, the biological sonar used by
bats and dolphins to “hear their surroundings.”
Indeed,While using compact
fluorescent light bulbs energy saving
light
helps conserve energy, it is important that the bulbs are collected
and recycled properly to protect our environment tests showed that blindfolded
students could make sounds and hear echoes to navigate. High-frequency clicking
sounds worked best, and young students fared better than teachers, supporting
the belief that hearing degrades with age.
Awards for the Northwestern
Ontario Regional Science Fair will be given out tonight from 7 to 8:30 p.m. in
Lakehead University’s Bora Laskin Auditorium.

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