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People
Compartments
¨ÏYOLK
¨ÏYOLK
Solarsystem+Chargingstation+Batteries&Lamps
¨ÏYOLK
Argus
Ju-yeong/The
¡ãYOLKtransformedacow-shaped
chargingstationintoadesignthat
¨ÏOh
canaccept200batteries.
has the student¡¯s personal ID code. In addition, the battery
4
Howcan¡°SolarCow¡±solvetheseissuessimultaneously?
Chang: In fact, they are closely interrelated, not separate
includes a particular pin connector, which is exclusive use
issues. The International Labour Organization (ILO)
for charging from the Solar Cow. Thus, this can prevent
suggests poverty is the greatest single cause behind child
theftandmisuse.
labor. To earn a living, parents send their children to work,
and then the children have no choice but to work. There is
6
Haveyoueverhaddifficultiesinrunningtheproject?
oneeffectivesolution,ConditionalCashTransfer(CCT),one
Chang: Desertification acted as a big variable. The
of the Official Development Assistance (ODA) businesses,
chargingstationandbatteryoftenmalfunctionedasdustand
payingcashtopoverty-strickenfamilies.However,itcannot
sand would stick to them. We had used an air compressor,
rescue a number of children from child labor because the
a machine for generating compressed air, to blow out the
budgetislimited.Therefore,wefoundanalternativeinsolar
sand. But it was unequal to the task. After pondering the
energy, which has the advantage of sustainability; the sun
issue,weremovedmagnetsinstalledinthechargingstation
rises every day and deliver the energy for free. The supply
and battery considering that a characteristic of sand is that
of electricity otherwise available is so low in contrast to
itcontainsiron,whichisstronglymagnetic.Inaddition,we
the demand in Africa. Thus, we offer families access to
have difficulty letting locals in Africa know how to use a
solarpowerandthenencouragekidstogetbenefitsfromit;
battery. The first operational principle of the battery was
havinganeducationandeliminatinglongtripstothecharge
designed to plug it into a charging station, turn it around
shop.Itkillstwobirdswithonestone.
once, and finally dock it with the USB port of a charging
station. We could understand this intuitively, but it was
hard to understand why they should spin the battery itself.
Whatarethemake-upandtheoperationalprinciplesof
5
Therefore, we carved the shape of a cow onto the battery
¡°SolarCow?¡±
Chang:SolarCowiscomposedofasolarsystem,charging
andchargingstationsothatuserscouldmatchuptheshapes
station,andbatteriesandlamps.Thesolarsystemisacharge
onthemandconnectthemtogether.
of the main server for converting solar energy into electric
energy. The original design of a charging station was cow-
Whathasbeenthemostmemorableeventwhilecarrying
7
shaped. The design references the fact that many children
outtheproject?
areremovedfromschoolsinordertocarefortheirfamily¡¯s
Chang: First, children made a song about Solar Cow and
cattle. But we updated the design to plug more batteries
sang us the song. The lyrics were a message like, ¡°Solar
into each station package than the previous model. On the
cow,solarcow,Igotoschooltomeetyou.Iloveyou.¡±The
bottom of the battery, there is built-in a USB port through
appearance of showing innocence made them look really
which people can charge all built-in USB devices. Also,
cute, and I also felt fulfilled because they seemed to think
whenchildrenplugthebatteryintothechargingstation,the
ofitasanindispensablething.What¡¯smore,spendingtime
teachercanautomaticallycheckattendance,aseachbattery
togetherwiththelocalfamilieswasmemorable.Wechatted
16
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