Diocesan Preparatory SchoolDiocesan Preparatory School
By:Adrian LoBy:Adrian Lo Tang Pok TinTang Pok Tin Peter LoPeter Lo Christopher YukChristopher Yuk
VS
Is Technology really Is Technology really
““Classic BBQClassic BBQ is is Just Better!”Just Better!”
From our surveys, we found thatFrom our surveys, we found that
Many People are Many People are Biased.Biased.
We conducted a two-part We conducted a two-part experiment.experiment.
Part 1. Part 1. We barbecued some sausages We barbecued some sausages using the using the ELECTRICELECTRICbarbecue Pit.barbecue Pit.
We asked ten people to taste two We asked ten people to taste two samples, and tell which came from samples, and tell which came from the classic barbecue pit, and which the classic barbecue pit, and which came from the electric barbecue pit.came from the electric barbecue pit.
ResultsResults
Correct
Wrong
60% of the interviewed thought they were different!60% 40%
We conducted a two-part We conducted a two-part experiment.experiment.
Part 2. Part 2. We barbecued some sausages. This We barbecued some sausages. This time, we really barbecued them with time, we really barbecued them with both the classic Barbecue pit and both the classic Barbecue pit and the electric barbecue pit.the electric barbecue pit.
We asked some people to tell which We asked some people to tell which of them came from the classic of them came from the classic barbecue pit, and which came from barbecue pit, and which came from the electric barbecue pit.the electric barbecue pit.
ResultsResults
Correct
Wrong67% 33%
67% of the interviewed answered wrongly!
They They Cannot Cannot
Tell!Tell!
Classic BarbecueClassic Barbecue
We We barbecued forbarbecued for 3 3 hours.hours.
We used a bag of We used a bag of CHARCOAL CHARCOAL . $22.90. $22.90
We used a box of We used a box of FIRE FIRE STARTER. STARTER. $8.00$8.00
Total: $30.90Total: $30.90
Per Hour: Per Hour: $ 10.30$ 10.30
Electric BarbecueElectric Barbecue
According to non-According to non-residential electricity residential electricity fees, using fees, using 12,000w of 12,000w of electricityelectricity, we use , we use 12 12 degrees of electricity.degrees of electricity. $11.68/h$11.68/h
Per Hour: Per Hour: $11.70$11.70
Cost
The cost isn’t that expensive.
Air PollutionAir Pollution We used a bottle to We used a bottle to
collect the collect the fumes fumes from the electric from the electric and classic and classic barbecue pits.barbecue pits.
Then we added Then we added limewaterlimewater..
We shook them We shook them thoroughly.thoroughly.
Classic
ElectricThe limewater in the ‘electric barbecue fumes’ bottle is slightly clearer.
Solid PollutionSolid Pollution
We weighed the We weighed the rubbish we rubbish we produced after the produced after the electric barbecue electric barbecue and the classic and the classic barbecue.barbecue.
We got the We got the following results:following results: 0
100200300400500600700800900
1000
Wei
gh
t in
gra
ms
ElectricBBQ
ClassicBBQ
Electric BBQ produces much less rubbish.
SpeedSpeedUsing Classic Using Classic Barbecue to Barbecue to barbecue a barbecue a sausage: 32.24ssausage: 32.24s
Using Electric Using Electric Barbecue to Barbecue to barbecue a barbecue a sausage:154.82ssausage:154.82s
0
20
40
60
80
100
120
140
160
Sp
eed
in
sec
on
ds
Classic Electric
Classic Barbecue is faster. However, food barbecued on it is easier to get burnt.
ConvenienceConvenience Classic BarbecueClassic Barbecue
40 minutes of fire starting 40 minutes of fire starting (less if you have skill)(less if you have skill)
Adding charcoal once in a Adding charcoal once in a whilewhile
Electric BarbecueElectric Barbecue
A few minutes of booking, A few minutes of booking, and a few minutes of heating and a few minutes of heating upup
Cannot boil liquids due to Cannot boil liquids due to safety reasonssafety reasons
Can roast (unexpected)Can roast (unexpected)
Affected by electricity supplyAffected by electricity supply
Easy maintenanceEasy maintenance
ConclusionConclusion
There is actually There is actually no no substantial differencesubstantial difference
between Electric barbecue between Electric barbecue and Classic barbecue.and Classic barbecue.
Follow-upFollow-up
We will conduct a survey on whether We will conduct a survey on whether the people would choose electric the people would choose electric barbecue or continue using classic barbecue or continue using classic barbecue, after knowing that they barbecue, after knowing that they are actually the same.are actually the same.
We will research on the fee We will research on the fee collection.collection.
Just for FunJust for Fun
I’m inside! Don’t I’m inside! Don’t come in!come in!
Chicken wing’s Chicken wing’s heart attack!heart attack!
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