Saturday, January 28, 2017

Plant grafting result

Few weeks after we did a grafting, most of them were getting dry and die. Just only one can be survive.

Why do you think the first one was a success?

  • the shape of the cut is a perfect fit
  • enough water for surviving


Tuesday, September 20, 2016

We ban nuclear power

Nuclear power is a form of energy produced by an atomic reaction, capable of producing an alternative source of electrical power to that supplied by coal, gas, or oil. By the way nuclear power also has a bad effect to the natural and human’s life. There are 3 reasons why do we have to ban nuclear power.

The first reason is nuclear power is uncontrollable. If there is one error made, it could have devastating effect. Fukushima and Chernobyl is one of the perfect example. When it goes wrong, it exploded, it is endangered to people live, and also it is endangered to the earth.

The second reason is the radiation of the nuclear power. In nuclear radiation, it contains alpha, beta, and gamma rays, which are harmful to people, living thing, and nonliving thing. In Chernobyl, the effect of the radiation is a forest became to the red forest because of the absorption of high level of radiation by the pine trees and it changed color to the ginger-brown color.

The last reason is the impact to our environment. If accidents doesn’t happen, pipes from the plant may leak radioactive elements into water and kill animals in the water, and also the water might be drinking just infected. If accidents does happen, then the radiation would leak far away and killing species and causing people to evacuate their towns.

Euthanasia should be allowed

Euthanasia, from the Greek word meaning “good death”, is the practice of assisted suicide with the intention of relieving pain and suffering.’ I will give you 3 reasons why euthanasia should be allowed.

First one is people have the right to die. Human beings implies death. Without death, we do not have “human life” by its very definition. Like two sides of a coin, human life cannot occur without death. Because we can determine the course of our lives by our own will, we have the right to live our lives and determine our own course. Human being also gives us the fundamental right to determine how we die.

Second reason told that euthanasia is not immoral. For a physician to deny the person his right to die when under intense pain and suffering is effectively forcing them to live a life without what they believe is their dignity, a life of suffering and eventual death.

The last reason, euthanasia is not harm to others. Basically people have different interests. it is not uncommon to have conflicts of interest. When conflicts arise, it is the goal of state to ensure the resolution of conflicts without the disobey of fundamental human rights. These rights are protected above all others and their disobey is punished severely.

Monday, September 5, 2016

Plant grafting

Why do we have to grafting?

  • vegetative reproduction
  • change the variety and root system
  • add pollinator
  • repair damage
  • create designs
Equipment
  • budding knife
  • grafting knife
  • fine tooth saw
  • 2 plants
  • play dough
Step
  • Choose your cultivar and your rootstock
1.     Whip grafting can only be used to join rootstock and scions that are the same diameter, ideally between 1/4 and 1/2 inch in diameter.
2.     The graft must be made after the threat of cold but before the bark of the stock begins slipping (peels off easily).
3.     The scion must be dormant (not sprouting) at this time, and should be a twig about a foot long containing three to five buds.
  • Prepare the scion 
1.     Remove the terminal end of the scion. At the base of the scion, make a sloping cut to remove that end.
  • Prepare the rootstock
1.     Make a sloping cut across the chosen branch that mirrors the one you made on the scion. They should fit together precisely.
  • Cut tongues
1.     Make matching slices down into both the rootstock and the scion in such a way that they can hook into each other.
  • Introduce the scion
1.     Place the scion slightly offset from the rootstock and slide it down so that the tongues overlap. Make sure that the layer of green wood beneath the bark of both parties aligns or the graft will not take.
  • Secure the scion
1.     Wrap a stretchy rubber material around the graft site to hold the scion in place. Grafting tape works well. If using a different material, be sure to remove it in about a month.
  • Look after the graft













Result


Why do you think the first one was a success?
  •  the vascular tissue grow together
Any special consideration?

  • nothing

Wednesday, August 17, 2016

Fruit Batteries

Materials:

  1. Lemon
  2. Apple - red, green, and yellow!
  3. Lime
  4. Copper
  5. Iron
  6. Zinc
  7. Ammeter
  8. Voltmeter

Purposes:
  1. The purpose of this experiment is to determine the electrical voltage output of different combinations of electrodes and fruits. 
  2. It is also to find out which fruits give the highest voltage outputs. 
  3. It is also to find out if the separation of the electrodes affects the voltage output. 
  4. It is also to find out the voltages given off by different pairs of electrode materials. 
  5. It is also to examine the voltage outputs when the electrodes are connected in series and in parallel. 
  6. It is also to find the amperage output of different pairs of electrodes. 
  7. It will also examine whether the depth the electrode is inserted into the fruit affects either the voltage or amperage outputs

Procedure:

Roll the fruit a little to make it a little juicier in the inside. Insert one electrode material into the juicy part of the fruit. Insert a second electrode into the juicy part of the fruit, but not so the two electrodes touch.
video


Result:

1) Does the distance between the electrodes affect the voltage? 

 2) Does the distance between the electrodes affect the amperage?
 3)Does the type of fruit affect the voltage?
 4) Does the type of fruit affect the amperage?




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Some more pics!












Sunday, June 19, 2016

Titration Lab


Titration is a method or process of determining the endpoint of concentration of a dissolved substance.

Apparatus:
  • beakers
  • graduated cylinders
  • buret
  • substances: NaOH(basic solution) and HCl(acidic solution)
Steps:
  1. Clean a buret and fulfill with a solution (in our experiment we put 50 ml of HCl in a buret).
  2. Record the initial volume.
  3. Prepare the solution (25 ml of NaOH) by placing in a clean beaker and located under the buret.
  4. Slowly open the valve at buret and stir a beaker to make it become a clear liquid as before.
  5. When you approach the endpoint, color of a substance in a beaker will be pale pink. "MAKE SURE THAT YOU KNOW THE ENDPOINT"
  6. Collect the data.

This is our result (Mint and Poom)

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More pics! Cr. Book


          

Monday, June 6, 2016

Where I want to be one year



I want to be an engineering freshman at SIIT. In this month of next year I'm going to prepared myself to get ready for the university and I also feel excited for sure! :)