# 1.4 Direction

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## How to determine direction

ACTIVITY 1:

TO DETERMINE NORTH BY USING A WRISTWATCH

[LO 1.7]

You need the following :

a watch with hands

a match or stick

Step 1 : Stand outside on a sunny day. Hold your watch horizontally (flat) on your hand.

Step 2 : Hold the stick above the 12 on the watch.

Step 3 : Move around until the shadow of the stick falls on the 6 to 12 line.

Step 4 : Halve the angle between the hour hand and the 6 to 12 shadow line. The halve line is North .

ACTIVITY 2:

TO DETERMINE NORTH BY USING A SHADOW STICK

[LO 1.7]

Divide the class into groups. Choose a sunny day. This method requires a few hours, because the sun has to rise to its highest point and then go down again.

You need the following :

a ruler

a pencil

a large piece of white paper

a knitting-needle or straight stick

Step 1 : Put the paper on level ground and push the knitting-needle through its centre.

Step 2 : At 10:00, indicate the point of the shadow on the paper.

Step 3 : At 14:00, indicate the point of the shadow on the paper.

Step 4 : Now remove the paper and return to the classroom. Draw lines from the shadow point you have marked, to the point where the needle was. (See Figure 5.)

Step 5 : Halve the angle formed by ABC. The line on the opposite side of the shadow will be TRUE NORTH.

ACTIVITY 3:

TO DETERMINE DIRECTION AT NIGHT WITHOUT A COMPASS

[LO 1.7]

Do some research to find out how you would orientate yourself at night without a compass (in other words, how you would determine true north at night).

Make drawings and write down your information, so you can report your findings to the class.

In the library, find at least two sources with information about your subject.

Read the first source and write down the information under SOURCE 1.

Then read the next source and write down the information that wasn’t given in the first source, under SOURCE 2.

Use the information from both sources to write a paragraph or two.

## Assessment

LO 1

GEOGRAPHICAL ENQUIRY

The learner will be able to use enquiry skills to investigate geographical and environmental concepts and processes.

We know this when the learner:

• with guidance, selects and uses sources of useful geographical information (including graphs, maps and fieldwork outside the classroom) [finds sources];
• categorises information [works with sources];
• draws sketch maps and/or plans from field observation and measurements [works with sources];
• uses an index to find places on global atlas maps [works with sources];
• demonstrates knowledge and understanding of the issue through projects, discussion, debate and charts [communicates the answer].

do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
it is a goid question and i want to know the answer as well
Maciej
Abigail
Do somebody tell me a best nano engineering book for beginners?
what is fullerene does it is used to make bukky balls
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
so some one know about replacing silicon atom with phosphorous in semiconductors device?
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
for screen printed electrodes ?
SUYASH
What is lattice structure?
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
what's the easiest and fastest way to the synthesize AgNP?
China
Cied
types of nano material
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
what is nano technology
what is system testing?
preparation of nanomaterial
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
what is system testing
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
how did you get the value of 2000N.What calculations are needed to arrive at it
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Good
Berger describes sociologists as concerned with
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