Philippines Flood: Metro Manila Flood Typhoon Ondoy 2009

It’s clear to see that the flood was caused mainly by the spill from the dam and not the rains on that date. Occassionally Philippines do get that type of rain but it doesn’t rise to that high level. I don’t know anything about dam operation but I suggest it has to be reviewed and investigated.

Are there any flow control so that water release can be regulated? Was there negligence on the way it should be released? Is the monitoring process of water level in the dam includes weather forecast monitoring so that when forecasted heavy rains comes the expected water volume is calculated and if it exceeds the maximum water level of the dam an early release could be done ?
If Angat dam operators had released water days earlier , could we have averted this disasters?

Calling authorities please do something.

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A repost from JM

A SENATE INVESTIGATION IS IN ORDER!!!

The recent flood is the very unfortunate result of both natural and man made calamities. The release of excess dam waters was done without thinking of the consequences. it is both a criminal and insane act.

“The Angat Lake created by the Angat dam is the main potable water supply source of the Metro Manila Area. However this water when in over abundance, due to very heavy rainfall, is also the cause of widespread flooding, deaths, and accompanying misery affecting not only the provinces of Bulacan and Pampanga but also the Metro Manila Area. This happens everytime the dam water reaches its maximum height and the spilled water races down through the gullies and streams to the east of the dam and this rampaging water joins the water of the Marikina river system multiplying the floodwater volume of the Marikina River system thereby causing rapid increase in the volume of floodwater in the Marikina Valley. This happens everytime very heavy rains overfills the Angat water reservoir. The solution to this problem is the construction of water diversion/power generation tunnels to divert excess water towards the east emptying into the Pacific Ocean. It will also generate power. It is not enough that the excess water is emptied into the heavily populated areas, i.e, Bulacan, Pampanga area,Marikina Valley, as it definitely will cause multiple death and destruction downstream. Diverting the excess water to the east will save so many lives as the east side is relatively sparsely populated and at the same time generate power for electricity. The Government of the Republic of the Philippines must consider this as a permanent solution to the recurring problem of flooding in the central Luzon area and Metro Manila.”

I’m sorry for encroaching into your space but I do not know where to start. Please think about the opinion I expressed above. You may freely share this thought with your friends, hoping that someday, the people criminally responsible for the release of Angat dam water, on the morning of 26 September 2009, shall face the bar of justice. An in-depth study and analysis of google maps and wikimapia maps will prove my point. Better still, a short helicopter trip tracing the path of the floodwaters will verify this matter. The evidence left by the rampaging flood water will trace it back to its source and is difficult, impossible to erase.

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A Brief History of the Vacuum Cleaner

Ives W. McGaffey is credited with inventing the vacuum cleaner. The brainchild of McGaffey was developed in a Chicago basement. The patent was obtained on June 5, 1869. He called it the "Whirlwind." It was a wood and canvas machine operated by hand.

In 1901 a civil engineer by the name of Hubert Cecil Booth of England invented and patented the first successful vacuum cleaner. Booth's machine was the first to use suction with a filter bag to clean carpets. Prior to his invention compressed air was used to blast dirt and dust away from the carpet. If used inside these machines would merely stir up the dust and eventually it would settle back down to where it had been.

Booth's vacuum cleaner was so big it was drawn by horses and had to be operated by four to six people. The large apparatus stayed outside the customer's home. The noise from the cleaner was so bad that it often scared horses passing by and Booth was often sued. This did not stop the success of his machines. In 1903 the well-to-do women of the day would throw vacuum cleaner parties. Guests would sip tea and lift their feet as uniformed attendants vacuumed the home. A visit would cost around four dollars.

The first "portable" electric vacuum was invented in 1905 by Chapman and Skinner in San Francisco. It weighed 92 pounds. Because of its size it did not sell well. In 1907 James Murray Spangler, a janitor in a Canton, Ohio department store, unhappy with the carpet sweeper he used on his job, was convinced it was the cause of his cough. Using spare parts - including an 18-inch fan motor, soapbox, broom handle, and a pillowcase - he developed quite a contraption. Spangler worked on his invention, improved it and received a patent in 1908, and formed the Electric Suction Sweeper Company. One of his first customers was his cousin, whose husband was William H. Hoover. Hoover actually bought the patent for the machine from Spangler. The Hoover model O weighed only forty pounds; it was the first to use both a cloth bag and attachments. Hoover developed positive agitation in 1926.

James Dyson introduced the Cyclone model 1000, the first bagless dual cyclone machine. Between 1978 and 1993 he built 5000 prototypes before he perfected his Dual Cyclone machine. In May of 2001 Dyson had 29% of the vacuum cleaner market by volume.

In April 2001 Eureka announced a robot vacuum cleaner. Since then several companies have marketed robot vacuum cleaners. Since 1869 the vacuum cleaner has evolved into advanced computerized machines. It takes a stretch of the imagination to think about what the future holds for these machines that are a vital part of cleaning professionally!

1858 Carpet sweepers were introduced in the United States; cleaning was done entirely by a rotating brush, which was activated by the wheels; there was no suction.

1869 Ives W. McGaffey obtained a patent for the first hand pumped vacuum cleaner in the United States. Developed in his basement in Chicago it was a contraption made of wood and canvas. It was known as the "whirlwind", manufactured and sold by the American Carpet Cleaning Company. It had suction, but did not have a brush roll.

1875 First cleaner developed that had both suction and a brush roll, utilized a hand crank for power to drive both the fan and the brush.

1901 Hubert Cecil Booth invents the first successful vacuum cleaner. It is the size of a milk float, operated by four to six people.

1905 The first portable electric vacuum invented by Chapman and Skinner in San Francisco. It weighed 92 pounds and used a fan 18 inches in diameter to produce suction. Because of its size it did not sell well.

1906 James Murray Spangler invents the first domestic single-operator upright vacuum cleaner.

1907 William Henry Hoover produces the first commercial bag-on-a stick upright vacuum cleaner.

1912-1915 Axel Wenner-Gren in Sweden collaborates with Lux to produce the first cylinder cleaner-Lux 1(later Electrolux).

1912 A vacuum cleaner nicknamed the "Grasshopper" was one of Jim Kirby's early designs. It was a non-electric cleaner design to serve households in rural areas.

1930's The first plastic vacuums hit the market and headlights were added to some of the fancier models.

1955 Re-useable paper bags first introduced.

1969 The first self propelled vacuums debuted.

1970 Hoover introduces carpet care control with height adjuster on upright cleaners.

1983 James Dyson introduces the "Cyclone" model 1000 cleaner, the first bagless dual cyclone machine.

2001 Prototype robotic cleaners for domestic use are introduced.

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Sources:

Discover.com

Ideafinder.com

Sciencemuseum.org.uk

Inventors.about.com