6
4. Connectthe base and the base cover, making surethe wires are kept inside, by usingthree screwson the undersideof the base.
5. Turnthe finished base upright. Pushthe propeller onto the motor spindle.
Congratulations!Your Tornado Maker is ready.
E. OPERATION
2
9
I . Puttwo I .5V AA batteries into the battery case, with the negative terminal (the flat end) touching the
springs. Install the battery cover and secureit with one screw.
2.Takea plaintransparentwaterbottlenolargerthanI .25 litreandremoveanywrappingor labels.Fillthebottlenomorethan80%fullwithwater,leaving
it at leastI [5th empty(Ifyou fillthebottletoofull,thevortexwill notform.)Cutoffa comerof thebagof foamballsandpoursomeintothewaterbottle.
3. Placethe Tornado Maker upside down onto the mouth of the bottle and turn clockwiseto screw it on. Be sureit is on tight!
4. Turnthe set-upupright, with the base at the bottom. (If any water leaksfrom the bottle, turn it upside down, removethe Tornado Maker,
dry it and tighten the two screwsattaching the bottle holder. Then reattachthe Tornado Maker and turn it over again.) Turnon the Tornado
Maker usingthe ON/OFF switch.Watch the water swirl to become a tornado! See how it changes in shapewhen you tilt it!
FormorefiJn,try botdesofdifferentshapesandsizes(butno largerthan I .25 litre).Youcanalsoadd foodcolouringor glitter,andshinea torchthroughthe
bottle!Makeit looklikea reallydestructivetomadoby addingsomecoffeegroundstothewater.YOUcanevendecoratetheTomadoMakerand bottleto
makeitcompletelyunique!Whenitisnotinuse,turnthewholeset-upover,ortakeofftheTomadoMakerfromthebottle.Afrera fewtimesof operation,uninstall
thepropellerandunscrewthebottleholder,applysomecookingoil orvaselineaswater-resistantoilto thewatercsistantringfor betterperformance.
F. TROUBLESHOOTING
If water leaks from the bottle, make sure:
• The bottle holder is secured tightly to the base cover;
• The water bottle is screwed tightly into the bottle holder;
• The red water-resistant ring is installed around the motor spindle;
• The water bottle is in good condition.
If the propeller does not run, make sure:
• The batteries are new or still usable;
• The batteries are correctly installed;
• The motor, bottle holder, and propeller are all correctly installed (refer to sections D 1, D2 & D5);
• The wires are correctly connected (section D3).
If no vortex appears, make sure there is enough empty space left in the bottle. If in doubt, empty a little water from the bottle and try again.
If the vortex cannot be formed completely, try using another bottle, as the difference in shapes and sizes could affect the outcome.
If the propeller slows down after operating for some time (the water pressure can cause the motor to overload), turn over the set-upand switch
it off for 15 minutes. It is also not recommended to use the Tornado Maker for long periods of time.
G. HOW DOES IT WORK?
Ifyou spina bottleofwater in a circularmotion,it createsa water vortexthat lookslikea minitornado.Themotorof your TornadoMakerworksin
thesameway. Itturnselectricenergyfromthebatteriesinto physicalenergyand runsthe propeller.Thepropellerswirlsthewaterin a circularmotion
and createsa vortex.Thevortex formsdue to centripetalforce, an inward forcethat directsan object (suchasfoam balls)or fluid (suchaswater)
towardsthecentreof its circularpath.Vortexesfound in natureincludetornadoes,hurricanesand waterspouts(a tornadothat formsoverwater).
H. FUN FACTS
• Tornadoes are one of the most dangerous forces of nature. Extreme tornadoes can reach wind speeds of over 483 kilometres per
hour (300 miles per hour), and can easily flatten houses and lift cars off the ground. Be careful!
• When warm wind from the southmeetscold wind from the north, the energy of both winds creates a thunderstorm,and the turbulent
air begins to swirl - sometimes creating tornadoes!
• Tornadoes are classifiedusingthe FuiitaScale - between "FO" and "F5" based on the damage they cause. FOtornadoes aren't very
dangerous, and iust stir up dust and break a few tree limbs. F5 tornadoes are highly destructiveand potentially deadly, destroying
houses, throwing around cars and causing damage to towns and cities that can take years to repair.
• In 1989, the deadliest tornado ever recorded in the world killed around 1300 people in Bangladesh.
• The safestplace to be during a tornado is underground, which makesbasementsand cellarsthe ideal place to take shelterwhen the
weather forecast predicts possibletornado-producing storms.
02014 4M Industrial Development Limited. All rights reserved
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