Category: Archie’s Experiments

The Paper Clip Experiment

Materials:

-Paper or tissue.                                         

-Cup.                                                          

-Needle

-Paper clip.

-Water.

Method:

The needle or the paper clip must be dry.

1.Fill the cup up with water

2.Cut a  small square piece of paper or tissue (With the tissue you need to separate the layers before you cut)

3.Put the needle on the square of tissue or paper. You need to center the needle in the square.

4.Lift up the needle on the paper. Make shore there is a flat valley where the needle or paper clip is.

5.Lower down the paper or tissue with the needle or paper clip on it. Make shore the flat valley is on the water first.

6.Once the tissue or paper starts to sink and the needle or paper clip is sitting on the water push down the rest of the paper or tissue.

How it works:

The needle or the paper clip sits on the water not floats. This is possible even though the metal is heavier. The surface tension allows this to happen because ,the surface tension is strong enough to let these objects sit on the surface.

You need to disturb the surface as little as possible. This is so you don’t break the surface tension. This is also why you need to lower the tissue evenly and close to the surface.

By Archie Hitchins

Khaki Weed

Khaki Profile

Native to: South America.
Classification: Pain in the back side (it is literally a pain in the back side if you sit on it. I have experience it. It poked through my shorts)        

Note from Archie: This weed has burrs and a tap root. It is a prolific seeder and creeps around the area. It sticks on shoes ,tyres ,cattle , wallabies , domestic and native wooly mammals.

For real information go to Brisbane Government on khaki weed link here.

https://weeds.brisbane.qld.gov.au/weeds/khaki-weed

Methods of weeding or killing these green terrors are listed below.

1. Urine
If you presently wee on khaki weed it eventually dies. Remember don’t stop if plants brown just keep peeing. It should take at least a week peeing 2-4 a day.

2. Weeding
You dig up the roots but make sure you get the whole tap root and all the seeds. It is easier to weed them after the rain because the soil is soft.

3. Drowning Khaki weed in fermented vinegar. You do need to cover this weed with vinegar. You do need some vinegar (60 or more millimeters) to kill it successfully.

Warning.

This weed will come back after rain if all seed is not collected and the whole tap root is not weeded.

Pot ash and Garden lime boost khaki weeds growth. And remember the more dehydrated you are the quicker the weed dies.

By Archie Lytton-Hitchins