Thursday, 22 November 2012

Coffee

Hi internet, today I am going to talk about my favorite drink in the world. Coffee!:) I love this drink however I do restrict myself to drink about once per month. Apparently my body is sensitive to caffeine hence once I drink a cup of coffee, MY MIND LAST FOR A WHOLE DAY 24 HOURS... Anyways I recently watched a YouTube video about coffee. It talked about its history,uses and benefits. It was pretty good, I will post the video on this blog.

SO HOW DID IT ALL STARTED??


Knowledge 1: The Ethiopians first noticed the effects of the caffeine when they saw goats jumping around after eating coffee berries. Exactly like that goat:)

How was it originally eaten??

Knowledge 2: Coffee are originally eaten by mixing coffee berries with fats but I do not know what kind of fats. I am guessing goat fat:) These delicacies are made by African tribes.

Where do they come from and the consumers?

Knowledge 3:  All coffee berries are grown in the coffee belt. This belt is the area in between the tropic of Cancer and the tropic of Capricorn. Hawaii is the only state of USA that grows coffee berries.


Knowledge 4:  People in Norway would drink about 9.4 cups a day! On average of course. However, the largest buyer of coffee is America.



Knowledge 5: 70% of the world drink Arabic coffee which is mild and aromatic while the rest of the 30% drinks Robusta which is more bitter but has more caffeine.

How are coffee cultivated and its uses?




Knowledge 6: Coffee trees can grow about 30 feet tall but are cultivated around 10 feet for easy-picking. The red berries are picked and dried until all that's left is green berries hence coffee berries must be hand picked.

Knowledge 7: The beans are then roasted at around 500F or 260C. After a few minutes, the bean will pop and double in size. 




Knowledge 8:The trees have caffeine in them which is also used as a insect repellent as caffeine can kill or paralyze insects. However, they do not paralyze us as caffeine can only kill one gram bugs unlike us. 

What does caffeine do to us?

Knowledge 9: 1. It causes an increase in the cardiovascular and nervous system activity.
                        2.Caffeine effects can begin shortly after consumption and remain in your
                        body for several hours.
                        3. Caffeine affects your nervous system by stimulating the nerve endings  
                        throughout your body and increases your brain functions.
                        4.  This nervous system stimulating results in a better mood for some, lessens
                        fatigue, and helps people to think clearly and be more attentive.        

Knowledge 10: There are many types of coffee in the world however I would only state the most common few such as Americano, Latte, Mocha, Cappuccino and decaf. 

I have learnt a lot today, I did not know that coffee had such a long story behind it:) Tell me what you think:)

Monday, 12 November 2012

Blood transfusion

Hi internet, today I would like to talk about blood transfusion. I got the idea of talking about this subject because I was curious about what would happen to someone if his blood was mixed with a wrong blood type. So lets get straight to the topic:)




Knowledge 1: It is a safe, common procedure in which you receive blood through an intravenous (IV) line inserted into one of your blood vessels.

Knowledge 2: Blood transfusions are used to replace blood lost during surgery or a serious injury. A transfusion also might be done if your body can't make blood properly because of an illness.
Such as:  1. Anxiety
                2. Chest or back pain
                3. Difficultly breathing
                4. Fever, chills, flushing, and clammy skin
                5. Nausea
                6. A quick pulse or low blood pressure
                7. HIV
                8. Hepatitis B and C
                9. Variant Creutzfeldt-Jakob disease ( It is basically a brain disorder )



Knowledge 3: During a blood transfusion, a small needle is used to insert an IV line into one of your blood vessels. Through this line, you receive healthy blood. The procedure usually takes 1 to 4 hours, depending on how much blood you need.



Knowledge 4: Blood banks collect, test, and store blood. They carefully screen all donated blood for infectious agents (such as viruses) or other factors that could make you sick.

Knowledge 5:  To prepare blood for a transfusion, some blood banks remove white blood cells. This process is called white cell or leukocyte reduction. Although rare, some people are allergic to white blood cells in donated blood. Removing these cells makes allergic reactions less likely.




Knowledge 6: Every person has one of the following blood types: A, B, AB, or O. Also, every person's blood is either Rh-positive or Rh-negative. So, if you have type A blood, it's either A positive or A negative.


Knowledge 7: The blood used in a transfusion must work with your blood type. If it doesn't, antibodies (proteins) in your blood attack the new blood and make you sick.

Well, that's one doubt clarified. I learnt quite a lot though, did you? Tell me what you think:)


Sunday, 4 November 2012

How are tissue papers made?

Hi internet! In my last post,  I talked about what do we use trees for. I realized that I did not mention about tissue paper so it came to my mind that I should talk about how are tissue papers made.

First, we must know the foundation of tissue paper. It's main component is pulp. Now what is pulp,
Knowledge 1: Pulp is a fibrous material prepared by chemically or mechanically separating cellulose fibers from woodfiber crops or waste paper.



It looks like wood shavings... Never mind that. 

Knowledge 2: All kinds of paper are made of 100% wood. This includes newspaper, magazines and even toilet paper. 

Knowledge 3: Tissue paper is produced on a paper machine that has a single large steam heated drying cylinder  fitted with a hot air hood. 

It looks complicated but trust me its not. 

Knowledge 4: The drying cylinder is sprayed with adhesives. Adhesives are bonding agent to make the paper stick. Inside the cylinder, there is a blade to scrape all the dried paper off. The blade is specially shaped to ensure all paper is scrapped off. 

Knowledge 5: The tissue paper is then cut into specific shapes for consumers.

As simple as that:)

Knowledge 6: The nanotechnology industry has been working to produce genetically modified trees, which produce a new type of tissue paper that has a higher quality. They call it "intelligent wood". Groovy:) This might be able to solve the problem of high demand of wood for paper. Well at least I'm glad that people are trying:)