Discovery Telecom Young Explorer Kit Manual do utilizador - Página 2

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Components

Built-in Compass

4x Eyepiece

Binoculars

30mm

Objective

lenses

Explorer's

notepad &

pencil

Binoculars

When you pick up a pair of binoculars, it's like

looking through two telescopes at the same time!

They are easier on the eyes than a telescope as

there is less eye strain when viewing objects and

scenes.

Focusing is achieved by moving the central wheel

on the bridge between the two eyepiece tubes.

These 4 x 30 magniﬁcation binoculars are

lightweight and compact making them

convenient to carry around.

Field Microscope

First, ﬁnd a suitable

specimen. This can be a leaf,

a piece of bark, or any other

small sample. Ideally, place

the specimen on some white

card, then position the

microscope over this.

CONTAINS

EVERYTHING

YOU NEED TO

START PLANNING

YOUR VERY OWN

OUTDOOR

ADVENTURE!

On/off switch

Field

microscope

Focus

wheel

Integrated

illuminator

Carry strap

Compass

Carry strap

Alternatively, place the microscope directly on

top of larger specimens. Switch on the light,

look through the eyepiece and use the focus

wheel to achieve a sharp image.

Compass

A compass is an instrument that indicates

direction relative to the four geographical

cardinal points, North, South, East and West.

It was ﬁrst invented around 200 BC in China, and

introduced to Western Europe around the 13th

century.

It works by using a magnetised needle that

aligns with the magnetic ﬁeld in the earth, so

that one end always points to the North; you can

then use the markings on the compass to

determine direction in relation to this.

Basic Compass Reading

To read your compass:

• Hold your compass steadily

in your hand so the baseplate

is level.

• Hold it about halfway

between your face and

waist in a comfortable

arm position with your

elbow bent and compass

held close to your

stomach.

• Look down at the compass

and see where the needle points.

This compass is pointing due North

(also 0 degrees), because the direction we

are facing is the same as the direction of the

moving arrow.

• Turn your body while keeping the compass

in front of you.

• Notice that as the compass

rotates, the needle stays

pointing the same

direction (north).

In the example right,

we are heading

West (270 degrees).

Battery Installation

Adults only

3 x AG13 (LR44) 1.5V button cells

Insert batteries in the body of the microscope.

You will need a Phillips head (+) screwdriver to

remove the battery compartment cover.

Make sure they are in the correct polarity.

Replace the battery compartment cover and

re-insert the screw. Do not over tighten.

IMPORTANT INFORMATION

This unit uses 3 x AG13 (LR44) 1.5V Button Cells included

– Only adults should replace batteries.

– Do not mix battery types or old and new batteries.

– Non-rechargeable batteries are not to be recharged.

– Batteries are to be inserted with the correct polarity.

– Do not short-circuit the supply terminals.

Inspired by

Take a Bearing

By simply moving your compass with your body

and using the N-E-S-W markings, you can get a

good idea which way you are going.

This is often all you need from your compass.

However, your compass also has numbers

and tiny lines around the outside.

When you need to ﬁnd your way from

one particular place to another,

you need to use these numbers

to ﬁnd out the bearing to that

remote place.

The direction you are going is

called your heading. Heading

and Bearing are pretty much the

same thing. The image illustrated

is a heading of about 240 degrees.

Compass Reading Tips

• Hold the compass level - if the compass is

tilted, the needle will touch the clear lid and

not move correctly.

• Read the correct end of the needle.

• Use common sense, such as knowing that if

you are in Europe, the sun during the middle

of the day, you are heading in a southerly

direction.

• Keep the compass away from metal objects -

even a knife, ﬂashlight, or keychain can cause

a false reading if too close to the compass

because they are magnetic, and can affect the

position of the needle.

Safe Battery Usage

– Remove exhausted batteries from the microscope.

– When microscope is not in use, remove batteries to

prevent possible leakage.

– Use only recommended or equivalent battery types.

– Do not dispose of batteries in ﬁre: batteries may

explode or leak.