Saturday, October 25, 2008

What do you want? coke or water?

sinulat at iniwasto ni ... Lobitzzz sabi sa relo ko 10/25/2008 08:15:00 PM

Would you rather have Coke ... or Water?

Nothing new here. Just a timely reminder.

Believable???

Very interesting!!!

WATER
#1. 75% of Americans are chronically dehydrated.

(Likely applies to half the world population)

#2. In 37% of Americans,

the thirst mechanism is so weak that it is mistaken for hunger.

#3. Even MILD dehydration will slow down one's metabolism as low as 3%.

#4. One glass of water will shut down midnight hunger pangs

for almost 100% of the dieters in a University of Washington study.

#5. Lack of water,

the #1 trigger of daytime fatigue.

#6. Preliminary research indicates that 8-10 glasses of water a day

could significantly ease back and joint pain for up to 80% of sufferers.

#7. A mere 2% drop in body water

can trigger fuzzy short-term memory, trouble with basic math,

and difficulty focusing on the computer screen or on a printed page.

#8. Drinking 5 glasses of water daily

decreases the risk of colon cancer by 45%,

plus it can slash the risk of breast cancer by 79%,

and one is 50% less likely to develop bladder cancer.

Are you drinking the amount of water you should drink every day?

COKE
#1. In many states

the highway patrol carries two gallons of Coke in the trunk

to remove blood from the highway after a car accident.

#2. You can put a T-bone steak in a bowl of Coke

and it will be gone in two days.

#3. To clean a toilet:

Pour a can of Coca-Cola into the toilet bowl

and let the "real thing" sit for one hour, then flush clean.

The citric acid in Coke removes stains from vitreous China

#4. To remove rust spots from chrome car bumpers:

Rub the bumper with a rumpled-up piece of Reynolds Wrap aluminium

foil dipped in Coca-Cola.

#5. To clean corrosion from car battery terminals:

Pour a can of Coca-Cola over the terminals to bubble away the corrosion.

#6. To loosen a rusted bolt:

Apply a cloth soaked in Coca-Cola to the rusted bolt for several minutes.

#7. To bake a moist ham:

Empty a can of Coca-Cola into the baking pan,

wrap the ham in aluminium foil, and bake.

Thirty minutes before ham is finished,

remove the foil, allowing the drippings to mix with the Coke for a sumptuous brown gravy.

#8... To remove grease from clothes:

Empty a can of Coke into the load of greasy clothes,

add detergent, and run through a regular cycle.

The Coca-Cola will help loosen grease stains.

It will also clean road haze from your windshield.

FOR YOUR INFORMATION:

#1. the active ingredient in Coke is phosphoric acid.
It will dissolve a nail in about four days.

Phosphoric acid also leaches calcium from bones

and is a major contributor to the rising increase of osteoporosis.

#2. To carry Coca-Cola syrup! (the concentrate)

the commercial trucks must use a hazardous material place cards

reserved for highly corrosive materials.

#3. The distributors of Coke

have been using it to clean engines of the trucks for about 20 years!

Now the question is, would you like a glass of water?

or Coke?

Friday, October 24, 2008

The diesel bacteria

sinulat at iniwasto ni ... Lobitzzz sabi sa relo ko 10/24/2008 08:10:00 PM

Hindi ba napaka mahal na nang gasolina sa taong ito? may nadiscover ang mga scientists na pwedeng ipamalit sa gasolinang ito...

The Gas Bug

Fill your car with eco-friendly bacteria excrement

from popular science magazine

Bacteria + Sugarcane = Diesel: Hybrid Medical Animation/Photo Researchers; Getty Images; Don Mason/Corbis

E. coli has earned a nasty reputation for upsetting stomachs and killing people. But now scientists at LS9, a start-up in South San Francisco, are putting the bad bug to good use, genetically engineering it to excrete biodiesel. The fuel "burns just like diesel," says Greg Pal, the senior director at LS9 [see Breeding the Oil Bug, about the rise of microbial biofuels].

In September, LS9 made headlines with the launch of a pilot plant in its hometown that turns out hundreds of gallons of the biodiesel a week. The plant mixes modified E. coli with sugarcane in large vats of water. The microbes metabolize the sugars and excrete fatty acids that have the same hydrocarbon configuration as petroleum. Unlike other biodiesel setups, LS9's fuel is easy to collect -- it floats to the top of the water and is skimmed off like cream from milk -- and can go straight into your gas tank.

Making fuel from sugarcane uses fewer resources than corn, and biodiesel doesn't require the major infrastructure upgrades that ethanol and natural gas call for. A gallon of fuel from sugarcane-fed bacteria could cost $50 a barrel, Pal estimates, compared with the current $200 price tag for a barrel of conventional diesel. And LS9 says it can further drop costs by feeding the bacteria wood chips and other biowaste. Pal expects a large-scale plant to be up and running by 2011.

Thursday, October 23, 2008

Hybrid of the sky

sinulat at iniwasto ni ... Lobitzzz sabi sa relo ko 10/23/2008 12:25:00 AM

The Personal Tilt-Rotor

An ambitious aircraft concept combines the speed of a plane, the agility of a helicopter and the efficiency of a hybrid car

By Abe Streep

eto yun picture: paki-click na lang...

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7VKdc8r3VZAGc5C9yTdvvlq4TaObxK0fjOZqSnDiq4fGhzpU5HICXC6D1OPQwzl29QZ5oJcu9cm6zmEXYSVrYTkT2oQdrN8USXLLyI1TkHKvYni4_mQ2tj38yxT545Y2CS3Y8-5ws/s1600-h/falx-970.jpg

Imagine a car veering off a lonely mountain road and tumbling down the embankment. Minutes later, a sleek aircraft zooms in quietly at 230 miles an hour, tilts its wings and rotors up, hovers, and sets down just feet from the wreck. The pilot and a medic load the injured driver into the aircraft and zip back to a hospital at twice the speed of a conventional helicopter ambulance.

Simon Scott, the owner of Falx Air, an aviation company based in Staffordshire, England, wants to revolutionize not just medevacs but all personal air transportation. A former communications specialist in the British Army's Air Corps, Scott has been designing Falx Air's hybrid-electric vertical-takeoff-and-landing (VTOL) craft for the past eight years. He's currently bench-testing components in the hopes of getting a single-passenger prototype ready to be certified in January by the Civil Aviation Authority, Britain's equivalent of the FAA.

The key to his design is a hybrid system that doesn't rely on batteries to do most of the work. The engine powers two generators, which directly feed two electric motors on each wing. A battery pack stores leftover power from the generator but kicks in only to provide a power boost during takeoffs, landings and the transition to forward flying. It needs the huge burst of energy to get extra lift because the rotors on a VTOL have a smaller surface area than those on a traditional helicopter. "If you want to fly your aircraft for two hours, you cannot do that on batteries," Scott says. "That's the reason behind having the engine supply electricity continuously."

The hybrid system keeps the craft small and light, and therefore fast and agile. By eliminating heavy mechanical parts like jet engines and gear boxes, Scott hopes to keep the single-passenger version under 1,000 pounds. And because an engine that only has to power generators can be smaller than one that has to drive rotors, the vehicle uses less fuel too.

Scott is finished with the design; now he just has to find parts that can make it real. Falx Air is testing a 104-horsepower, two-stroke engine, but it isn't flight-certified yet. And although Scott is looking into lithium-iron-phosphate batteries, similar to one of the battery chemistries being tested for the Chevy Volt [see page 50], his challenge is greater because the aircraft needs a bigger jolt of power than a car does.

Given the state of the technology -- and the additional $5 million Scott still needs to build the prototype -- Falx's January timeline seems unlikely. But it's not the only team trying to build an electric whirlybird. Last fall, officials at NASA's Ames Research Center looked into the feasibility of producing electric helicopters by using fuel cells or lithium-polymer batteries. Inderjit Chopra, a professor of aerospace engineering at the University of Maryland who led the design study, found that an electric version of a two-man Robinson R-22 helicopter could theoretically fly for only 10 minutes before the batteries ran down."I would like to see a hybrid helicopter in the next 5 to 10 years," he says. And tilt-rotors? "They're a lot further off, because the takeoff energy is so high." Scott, who has sunk $500,000 of his own money into the project, is confident that his hybrid setup skirts his critics' concerns. "They can be skeptical," he says, "and we'll hover outside their window."

Falx Air Hybrid Tilt-Rotor Chopper

Dimensions: 202 in. (nose to tail); 220 in. (wingtip to wingtip)
Weight: 980 lbs. (empty); 1,212 lbs. max. (including pilot)
Cruising speed: 180 mph
Top speed: 270 mph
Range: 435 miles
Cost: $1.5 million

Pictures

Wednesday, October 22, 2008

proof of the Heron's formula

sinulat at iniwasto ni ... Lobitzzz sabi sa relo ko 10/22/2008 12:18:00 AM

kailangan niyo ba ng proof para sa heron's formula para sa homework natin sa math?? eto yung nahanap ko na madaling maintindihan.... hahahaha, wala lang uli...

Proof of the heron's formula

A modern proof, which uses algebra and trigonometry and is quite unlike the one provided by Heron, follows. Let a, b, c be the sides of the triangle and A, B, C the angles opposite those sides. We have

$\cos(C) = \frac{a^2+b^2-c^2}{2ab}$

by the law of cosinesFrom this we get the algebraic statement:

$\sin(C) = \sqrt{1-\cos^2(C)} = \frac{\sqrt{4a^2 b^2 -(a^2 +b^2 -c^2)^2 }}{2ab}.$

The altitude of the triangle on base a has length b sin(C), and it follows

$\begin{align} A & = \frac{1}{2} (\mbox{base}) (\mbox{altitude}) \\ & = \frac{1}{2} ab\sin(C) \\ & = \frac{1}{4}\sqrt{4a^2 b^2 -(a^2 +b^2 -c^2)^2} \\ & = \frac{1}{4}\sqrt{(2a b -(a^2 +b^2 -c^2))(2a b +(a^2 +b^2 -c^2))} \\ & = \frac{1}{4}\sqrt{(c^2 -(a -b)^2)((a +b)^2 -c^2)} \\ & = \frac{1}{4}\sqrt{(c -(a -b))((c +(a -b))((a +b) -c))((a +b) +c)} \\ & = \sqrt{s\left(s-a\right)\left(s-b\right)\left(s-c\right)}. \end{align}$

The difference of two squares factorization was used in two different steps.

Tuesday, October 21, 2008

"What Filipino Bad qualities should we change to progress?" eto yung homework namin sa english na sinulta ko...

sinulat at iniwasto ni ... Lobitzzz sabi sa relo ko 10/21/2008 01:38:00 AM

“Stop for one moment and Think”

“Mabuhay Filipinos!” this is what we will always hear in contests and competitions held in places outside our country. Sometimes, this phrase that we chant every time we compete helps us win, and other countries think that we are progressing internationally. However, if we go back to our country, and study its people and places, we will see that it is is not really progressing upwards, but crashing downwards. So how can we say that we are progressing if our fellow citizens are drinking sewage water and eating canned sardines and noodles? We are not progressing, but falling. If we go back and study our history, we will see that the Filipino people always blame the leaders who run our country, if there is an oil crisis or the peso-dollar fight is worthless, we will generate rallies and shout to the leaders that they are not doing their job, that they are only using the money of the people for their own benefit. But the answer why we are still like this is not because of our leaders but because of our own actions and our own bad qualities.
These “Bad Qualities” are the main reason why there are hundreds of houses built in illegal lands and why a large part of our people is experiencing hunger. Maybe the chief of these qualities, is the “Bahala na Mentality,” why? Because our people does not work and cooperate in order to at elevate our country, but they only follow the principle “Come what may.” This quality of the Filipinos originated from our ancestors and is still living today, we only wait on God in what He is going to do, and sometimes blame Him because of the bad happenings in our country. This is clearly wrong, because we should work and join forces in order to achieve what we want for our country, we should follow the old saying, “I shall do my best and God will take care of the rest.”

Another quality that brings us down is what we call, “The Crab Mentality.” This characteristic of the Filipinos is one of the most devastating one. For example, if one of our neighbors rises and progress, we Filipinos tend to pull them down instead of feeling happy for them. This is the reason why our own country is not rising, we our pulling ourselves when someone is going to a higher level than us, the result is that there is no net rise in our country, we are still in the same level as before.

There exist hundreds of bad qualities of the Filipinos that we should change in order to progress. But we just cannot see them, or we do not want to see them. We should stop for one moment and think, “Why are we still in this place? Why are we not moving forward? Is it because of me? Maybe it is my fault, maybe I am the reason why we are not progressing. If I really am the main cause of all our sufferings, I should change myself not blame it to others or to God”