4M Эко энергия (00-03287) [5/6] Trick 7 gravity robot
Макгруп McGrp.ru
Задайте вопрос
Зарегистрироваться

4M Эко энергия (00-03287) [5/6] Trick 7 gravity robot

4M Эко энергия (00-03287) [5/6] Trick 7 gravity robot
9
10
YOU’LL NEED
TRICK 7 : GRAVITY ROBOT
From the kit: Can holder, walking foot structure, string, screw nuts, double sided adhesive tape
Recycle: An empty drink can
Assembly
1.Slide the walking foot structure onto the slot of the can
holder.
2. Peel off the backing paper from four double-sided adhesive
tabs. Stick them to the can holder. Peel off the other side of
the backing paper and stick the drinks can in place.
3. Tie a string to the hanging hole on the walking foot
structure. Secure with a few knots.
4. At the other end of the string, tie 15 screw nuts. Secure the
nuts in place with a few knots at the end of the string. Your
Gravity Robot is now complete.
Operation
Stand your Gravity Robot on a table (preferably a wood table
with a matt surface) with the screws hanging over the edge
and the string taught. Let go of the screws and watch the
Gravity Robot waddle across the table! If your robot does
not moves, give it a slight push on one side.
Trouble shooting
If the desk surface is too smooth, the robot will move too fast
and will not “waddle”. You could cover the table surface with
a piece of newspaper and let your Robot walk on it. Or you
could stick a few lengths of sticky tapes to the table to make
a 5 cm x 50 cm walking track for the robot.
How it works
The Robot moves because the screw nuts pulls on it. The force
that pulls the screw nuts down is gravity, so the Robot moves
because of gravity. As the body is pulled forwards, the legs
on one side catches the ground. The body and the other legs
swing forward. This sets up a natural rocking motion, which
is kept going by the forwards motion. When one set of legs is
on the ground, the other is free to swing forwards.
Soda Can
Soda Can
Double
adhesive
tape
string
nuts
Stick the
moving eyes
RECYCLING TIPS AND FACTS
• Lots of objects used in these toys are old objects that we are re-using instead of throwing them
away. They include plastic bags, soda cans, plastic bottles, paper cups and CDs. Using objects again
is good for our planet. It saves making new objects, which uses up precious materials, such as
plastics, metals and paper, and takes energy. And it saves us from filling up rubbish tips with the
old objects.
• Re-using objects is just one of the things we can do with materials to help the environment. The
others are reducing (which means we should try to use less materials in the first place) and recycling
(which means we should use the materials in old objects to make new objects).
• All sorts of materials can be recycled, including paper, metals, most types of plastics and glass.
• In the year 2000, approximately 4,000,000,000,000 plastic bags were made and used every year.
That’s 4 million, or 4 trillion. In many countries the number of bags used has dropped dramatically
because of re-using and recycling, and making people pay for bags.
• In the USA, about half of all soda cans are recycled. But 1,500 soda cans are thrown away every
second!
• Adventurers in the USA are building a 20-metre catamaran from plastic water bottles that will sail
across the Pacific Ocean.
• Ingenious people have invented dozens of ways to re-use old CDs. Things made from CDs include
table mats, paper weights, bicycle safety reflectors, door screens, bird scarers, flower holders, sun
catchers, spinning tops, and even CD racks!
1
2
3
Fun facts
• The energy that makes the robot move is called gravitational potential energy. You put this energy
into the metal screws by lifting it upwards from the floor to the table, against the downwards pull of
gravity. As the metal nuts falls, the energy is gradually used up making the Gravity Robot walk.
• Can you think of other places where we use gravitational potential energy? How about marble runs,
playground slides and roller coasters?
• Scientists are working on making robots that walk in the same way as the Gravity Robot. Once they
are going, they need only a little push to keep them moving.

Содержание

Похожие устройства

Скачать