How should we swim?
That's a great deal,some people hit the water in a strong way but without any result,the key thing consists in FLOATING ,it is simple ,if we breathes strongly,we will have more Oxygen inside our body ,so we will be able to move easily inside the water without making lots of effort.
Another common mistake is a wrong movement of our arms,some people thing that having strong arms can help,I agree but an important point is moving our arms straight in a line so we make the movement more effective .
This were simple advice made by me that so many people make ,but here is a video about swimming technique.
The cell is the basic structure of the body. The human body is built of billions and trillions of cells. Cells of different organs vary according to their function.
Each cell contains the hereditary material and can make copies of themselves by reproducing and multiplying. After a specific life span the old cells die off.
Parts of the cell are called organelles. Human cells contain the following major parts:
Nucleus – This is central part of the cell that carries the blue print for the cell functioning and tells the cell when to grow, reproduce and die. It also houses DNA (deoxyribonucleic acid).
Mitochondria – These are the powerhouses of the cell and produce energy for the various activities of the cell.
Cytoplasm – This is a jelly like fluid within the cell in which the other organelles float.
Endoplasmic reticulum (ER) – This helps in processing the molecules (e.g. proteins) created by the cell.
Ribosomes – These lie over the ER and process the genetic instructions or the blueprints within the DNA and create new proteins. These can also float freely in the cytoplasm.
Lysosomes and peroxisomes – These help in digesting foreign bacteria that invade the cell, rid the cell of toxic substances
Cell membrane – This is the outer lining of the cell.
The Chromosomes
Within the nucleus the DNA strands are tightly packed to form chromosomes. During the cell division the chromosomes are visible.
Each chromosome has a constriction point called the centromere from where two arms are formed. The short arm of the chromosome is labelled the “p arm.” The long arm of the chromosome is labeled the “q arm.”
Each pair of chromosome is shaped differently by the location of the centromere and the size of the p and q arms.
Humans normally have 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females.
The 23rd pair is called the sex chromosomes and differs between males and females. Females have two copies of the X chromosome or XX, while males have one X and one Y chromosome.
The Genes
Genes are hereditary material that lies within the cell nucleus. Genes, which are made up of DNA, act as instructions to make molecules called proteins.
The Human Genome Project has estimated that humans have between 20,000 and 25,000 genes. Every person has two copies of each gene, one inherited from each parent. These are mostly similar in all people but a small number of genes (less than 1 percent of the total) are slightly different between people and this forms the basis of paternity tests and DNA analysis.
Where is DNA found?
What is DNA made of?DNA, or deoxyribonucleic acid, is the hereditary material that lies within the nucleus of all cells in humans and other living organisms. Most of the DNA is placed within the nucleus and is called nuclear DNA. However, a small portion of DNA can also be found in the mitochondria and is called mitochondrial DNA or mtDNA.
DNA contains four chemical bases:
Adenine (A)
Guanine (G)
Cytosine (C)
Thymine (T).
DNA base pairs
DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule.
DNA in humans contains around 3 billion bases and these are similar in two persons for about 99% of the total bases. These bases are sequenced differently for different information that needs to be transmitted. This is similar to the way that different sequences of letters form words and sequences of words form sentences.
Nucleotides and the double helix
A base, sugar, and phosphate in combination is called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix. This looks like a twisted ladder and the base pairs form the rungs of the ladder and the sugar and phosphate molecules form the sides of the ladder.
How does DNA replicate itself?
The DNA can make copies of itself. Both the strands of the DNA open up and make a copy of each and become two DNA stands. Thus each new DNA has one copy of the old DNA from where the copy is made.
Mitochondrial DNA
The mitochondria contain small amount of DNA. This genetic material is known as mitochondrial DNA or mtDNA.
Each cell contains hundreds to thousands of mitochondria that lie within the cytoplasm. Mitochondrial DNA contains 37 genes that help it to function normally. Thirteen of these genes provide instructions for making enzymes involved in energy production by oxidative phosphorylation. The rest of the genes help in making molecules called transfer RNAs (tRNAs) and ribosomal RNAs (rRNAs) that help in protein synthesis.
Nowadays English is one of the most spoken languages in the world.It is spoken in many different areas,that's why there are many accents or regional voices.It doesn't matter the accent,we can all communicate using this universal language.
Here is a video where you will see how different and the great amount of accents that English has.
Social media networks have changed our lives in the last decades.It has improved our way of communicating, but ,could it damage our lives is well ? I won't tell my point of view of social media networks because it is really personal,but i'll provide you a video where you will see some advantages and disadvantages of social media networks.After this i expect you got a conclusion.
Last week I have bought a new watch for running,but it is not a normal watch ; it's a GARMIN.Most people don't know what is a Garmin ,don't worry I'll explain to you : Firstly,it is a" satellite watch"because it connects to ANT satellite ,that's why you can record your routes , your average time and rithm by kilometres.
Then,Garmin can be connected to your PC , so you can share your trainings with people all over the wortld with just a click.You only have to download Garmin express and the best of it is that you can see your records in races because you can save your best times.
In adittion ,you can see how many calories you have burnt .It even has an option called "Personal trainer" ,so it is easy to achieve your objectives.
I have Garmin Forerunner 15 and it's awesome! It is not one of the most expensive ,althougt, it has all its components.You can also buy the podometer if you run in a gym,so you can't get GPS .And if you are worried about your limits ,you 'll be interested in buying the Cardiac rope.
In conclusion,i recommend these product to all those runners who are tired of just starting and stopping a chronometer.
I would like to show you a new that I have seen yesterday about a muslim teen called Ahmed Mohammed .It is icredible, he was handcuffed for making a clock for the science week of his school. His project looked like a bomb and instantly a teacher called the police.And just because he was muslim ¡¡¡ After some hours they had examinated the ``Bomb´´ and it was a simple clock.Later Barack Obama tweeted "Cool clock, Ahmed. Want to bring it to the White House? We should inspire more kids like you to like science. It's what makes America great." As is to be expected, there is far more to this story! #IStandWithAhmed .
Well in the future i would like to do a marathon ,my father does them and it is so tought but everybody says that you change your life when you pass the finish line of any marathon.One day i would like to try the marathon of New York City.Here is a video that i recommend to watch.
Os dejo un video que enseña la esencia y la dureza del trail,espero que os guste y os enganchéis.
Porque no solo el norte de España tiene montañas picudas y subidas duras jajaja.
During this year I'm going to present you a new game console and talk about it.
I will have it during next weeks so I'll start this sectio hearly.
If you want to see more information please visit:
https://www.playstation.com/es-es/explore/ps4/
It is the future for game players and in my opinion it is the best game console ever.
Boxing Day o Día de las Cajas es una festividad celebrada principalmente en las islas Británicas y otras naciones que pertenecieron al Imperio británico. Se suele celebrar el 26 de diciembre, y durante la fecha se promueve la realización de donaciones y regalos a los pobres.
ORIGEN
Este origen se remonta a la Edad Antigua. Se ha sugerido que después de la Navidad, las clases nobles entregaban cajas con comida y frutas a su servidumbre. También se ha propuesto que este día los sacerdotes sacaban a la vista cajas con donaciones de caridad hechas previamente. Otra teoría indica que el 26 de diciembre, los empleados
y aprendices se dirigían a sus puestos de trabajo con una caja, donde
el patrono depositaba dinero. Al final del día, los primeros se dividían
el dinero, lo que constituía una especie de aguinaldo. Boxing Day coincide con la festividad católica de San Esteban, aunque en algunas naciones la festividad es desplazada hacia el próximo día hábil en caso de que el 26 de diciembre sea sábado o domingo.
Este día suele utilizarse tradicionalmente para realizar competiciones deportivas, como partidos de rugby, fútbol, cacería, etc.
ENGLISH
Boxing Day is a holiday traditionally celebrated the day following Christmas Day, when servants and tradespeople would receive gifts, known as a "Christmas box", from their bosses or employers,
in the United Kingdom, Canada, Hong Kong, Australia, New Zealand,
Kenya, South Africa, Guyana, Trinidad and Tobago, Jamaica and other
Commonwealth nations, as well as Norway and Sweden. Today, Boxing Day is
the bank holiday that generally takes place on 26 December.
In South Africa, Boxing Day was renamed Day of Goodwill in 1994. Due
to the Roman Catholic Church's liturgical calendar, the day is known as St. Stephen's Day to Catholics, and in Italy, Finland, and Alsace and Moselle
in France. It is also known as both St. Stephen's Day and the Day of
the Wren or Wren's Day in the Republic of Ireland. In many European
countries, including notably Germany, Poland, the Netherlands and those
in Scandinavia, 26 December is celebrated as the Second Christmas Day
