Course Hero: The Social Learning Network

Do you have difficulty in understanding the lessons in school? Do you want to stay updated though being absent the whole day in class? Are you not able to finish studies because of financial instability?

An innovative way of learning was built online where students are talking about on the web. It is a social learning network known as Course Hero. Those who were not able to pursue their studies will have an opportunity to continue learning even outside the classroom. What is good thing about this site is, this is a place where students, teachers and self learners meet and discuss subject matters through cooperative learning or shall I say, another way of tutoring each other. UCSD University of California San Diego CSE 140 is one of the reference materials which will help you hit the mark. And if you still find it hard, you can find solutions in CSE 140 Homework Answer.

Course Hero is great in the sense that we learn at the same time making friends. This is open to those interested people. Signing up is free.

Learning is fun with Course Hero!

Eggshells as Hydrogen Fuel

• Eggshells have calcium carbonate, which, when subjected to heat processing, becomes calcium oxide that absorbs acidic gases such as carbon dioxide.
• The water-gas-shift reaction gasifies fossil fuels to produce carbon monoxide that combines with water to ultimately produce hydrogen and carbon dioxide.

Calcium carbonate is one of the nature's most absorbent materials, which makes it the most effective carbon dioxide absorber ever tested so far.

Making eggshells into hydrogen fuel can be another source for an alternative fuel in the future. These eggshells may not be enough to produce hydrogen for the whole country but at east, it can be a useful organic waste better than dumping in landfills.


Sources:

Engineered Eggshells To Help Make Hydrogen Fuel. www.sciencedaily.com/releases/2007/09/070926113832.htm
Eggshells Found Instrumental in Producing Hydrogen Fuel. www.techcolumbus.org/en/art/?503
Chicken Eggshells Make Hydrogen Fuel. www.scientificblogging.com/news_account/chicken_eggshells_make_hydrogen_fuel

Is it true that shaving makes hair grow thicker?

Shaving does not mean growing your hair thicker..The thickness and length of hair on your body mainly depends on genetics and hormones. Hair that has never been shaved has a tapered or beveled edge. When you shave, you remove the thin tapered tip of the hair and leave only the thicker middle portion protruding from the skin surface. So when it grows back, it does not only feel stiffer than before, it looks thicker, too.

Shaving does not wake up dormant hair follicles to produce hair. By the time your hair grows longer, it will feel thinner and softer again.

Hair may also look darker after shaving. Most hair is lighter at the end that it is at the root. So when you shave off that lighter end, you are left with the darker coloration that was always there at the root, giving the hair a darker look as it grows.

Sources:

Lawrence Gibson. Hair removal: Does shaving make it grow back thicker?www.mayoclinic.com/health/hair-removal/AN00638
Karen Springen. Does Shaving Make Hair Grow Back Thicker?www.newsweek.com/id/78014
Bato Balani.ISSN 0117-7079 Vol.28 No.4 SY 2008-2009

Is lightning accompanied by thunder?

It was a rainy afternoon. Lightning strikes and was accompanied by thunder and so my kids got scared..They ask me where does lightning came from and to my surprise, I too did not know the answer..funny indeed! and so I was task to search what are the facts about it..


Lightning causes thunder because a strike of lightning is incredibly hot. A typical bolt of lightning can immediately heat the air to between 15,000 to 60,000 degrees Fahrenheit. That's hotter than the surface of the sun! It travels faster than the speed of sound that is why each time lightning strikes thunder follows- a few seconds later.

Lightning always produces thunder. When you see lightning but don't hear any thunder, the lightning is too far away from you for the sound waves to reach you.

Light and sound will always move at different speeds. And lightning will always produce thunder because of a strike's high temperature. So no matter what, you will always see a flash of lightning before you hear thunder.

sources:

http://weathereye.kgan.com/cadet/lightning/thunder.html

Stomach upsets and headaches? Try peppermint...

Peppermint is more than just for flavoring food. It can do more- it helps relieve headaches and stomach upsets.

Peppermint has high menthol content and is a popular flavoring agent for toothpaste, candies, and tea. It is a calming agent that helps in soothing an upset stomach, and because it has numbing and calming effects, it is used to treat headaches, skin irritation, nausea, diarrhea, menstrual cramps and flatulence. Its soothing aroma can counter the symptoms of the common cold. Peppermint is said to have a positive effect on patients with depression.

According to studies, peppermint extract is much more effective than conventional pis and aspirins in relieving headaches. Peppermint can also be used to prevent skin diseases, urinary tract infections, and herpes. It can relieve asthma when taken as tea.


sources:

Peppermint.www.umm.edu/altmed/articles/peppermint-000269.htm
Jenny Hope,Peppermint'beats pills for soothing a headache'.www.dailymail.co.uk/pages/live/articles/health/health-main.html?in_article_id=383116&in_page_id=1774
Peppermint:Good for you and delicious in tea.www.compleatmother.com/womens-health/herbs/peppermint.shtml
Bato Balani.ISSN 0117-7052 VOL. 28 NO.3 SY 2008-2009

NENO's Award

I would like to thank Dennis Dumaop of the absurd mind who happen to be my namesake for tagging me with this kind of award, the Neno's award. I am very honored that I am chosen as one of those bloggers to receive this stuff....

I started blogging when I am encouraged by my wife to spend some of my spare time to this kind of stuff...I started just January of this year. I gained lots of friends here. I appreciate the comments and feedback that I receive and most importantly, I have shared the things that I love through blogging. Another thing is that I learned that I can earn through this hobby. I started to love blogging since then...and through this award, may i have the chance to thank those fellow bloggers who supported me by following my blog and added it to their favorites and visiting my page for some time..


This award aims to:

• As a dedication for those who love blogging activity and love to encourage friendships through blogging.
• To seek the reasons why we all love blogging.
• Put the award in one post as soon as you receive it.
• Don't forget to mention the name of the person who gave you the award.
• Answer the award's question by writing the reasons why you love blogging.
• Tag and distribute the award to as many people as you like.
• Don't forget to notify the award recipients and put their links in your post
  

I want to pass this blog tag award to the following people who have spent some of their time checking my blog and read my recent posts...I want to share this award to you guys...

1. The Pseudomonas by Briliam
2. Brief Stories by penwriting
3. Klinika kinetics by Jess Quijano
4. muZik blog-latest music by janjee
   

Do you wonder how does the sun turn street lights on and off?

Before, most street lights are controlled by time switches, which operate a group of lights in nearby streets. The earliest time switches worked by clockwork and had to be wounded up and adjusted every week. Then this was replaced by an electric clock with a rotating dial, containing levers or off at chosen times. They are similar to many time switches on central heating systems.

Nowadays switching times of street lights need not be adjusted anymore. Street lights automatically turn on as soon as darkness falls and turn off as soon as they are no longer needed. This is made possible using the device called Photoelectric control unit or PECU, a light-operated switch. PECUs switch on the supply when the light level falls beneath a given vaue (at dusk) and switch the supply OFF when it rises above another level (at dawn). The ratio between two ight levels is known as the switching ratio.

A photo cell in a PECU device contains a ight-sensitive compound such as cadmium suphide or silicon. Cadmium suphide has an electrical conductivity approximately equal to the level of light. At dawn, light falling on the photocell causes the eletrons to flow from one atom to another, onducting electricity to the switch and turning it off. When darkness fas, the eectrons in the compound become immobile, the current stops, and the lights are turned on. The exact time that the current is switched on and off depends on weather conditions.


Sources:
What are PECUs?www.zodionltd.eu.com/pecus_1.html
How does the sun turn lights on and off?Bato Balani;ISSN 0117-7079 Vol.28 NO.6 SY 2008-2009

Where did "once in a blue moon" phrase originate?

The phrase once in a blue moon pertains to an event that may happen very rarely or seldom or may not happen at all..After all when was the last time you saw the moon turned blue? The "blue moon" expression is old and dates back to medieval England. According to modern folklore, a blue moon is the second full moon in a calendar month. Usually, months have only one full moon, but occasionally, a second one sneaks in. Full moons are separated by 29 days, while most months are 30 or 31 days long; so it is possible to fit two full moons in a singe month. This happens every two and a half years, on average.

For example, in 2004, the month of July had two ful moons. The first happened in July 2, while the other one happened in Juy 31, which by definition is a "blue moon".