Where to download The Litigators by Grisham in PDF

The best quality PDF can be found at http://www.linkrepo.com/book/3109170/The-Litigators

Download it now!

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Download free 1Q84 ebook in PDF

If you want to get the new 1Q84 book by Haruki Murakami, head on over to LinkRepo, where you can snag the PDF.

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Where to find Steve Job’s Biography in PDF by Walter Isaacson?

The best and only place that has the PDF of the ebook is:
http://www.linkrepo.com/book/3220989/Steve-Jobs

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Which browser is the fastest?

See how the 5 most popular browsers compare in terms of speed. The SunSpider javascript benchmark results are shown below. A lower total score is better.

Safari 5.0.2: 347.8 ms

Opera 10.63: 291.4 ms

Chrome 7.0: 310.s ms

Firefox 3.6.1: 720.4 ms

Internet Explorer 8.0: 4522.6 ms

As expected, Internet Explorer 8 was the slowest, and more than 10 times as slow as the top 3: Opera, Chrome and Safari.

Opera, which all but faded in terms of non-smartphone market share has shown rapid improvement recently in javascript speed and remains a serious but niche contender in the browser game.

Is Firefox the new Internet Explorer? It is more than twice as slow as the top 3. In light of the results, it is obvious why Firefox isn’t gaining market share, while Chrome is making large headway by stealing both IE’s and Firefox’s user base.

Microsoft hasn’t thrown its hat in just yet, since the IE 9 beta has received tons of praise for its speed and conformity to web standards.

Because Internet Explorer is so slow, sucks, and is noncompliant with browser standards, dislike it on DownaPeg.com!

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Is color SEM (Scanning electron microscopy) possible?

SEM is only capable of producing black and white images. The color you see in the image above, and any image that purports to be a “color SEM” is a fake. The color is artificial, and was added later as a result of a program or simply adobe photoshop. SEM works by simply firing electrons onto an object, and then detecting the secondary electrons that are ejected from the object. Future SEM may possibly have color through taking energy distributions of ejected electrons from known materials into account.

Another fact that is not well known among the public at large is that the insects you see in SEM pictures are not alive. They have to be carefully prepared by adding a conductive layer of metal through sputtering, and removing all moisture. Sometimes the insects are even frozen in preparation for SEM.

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Nanolab Safety Notes

If area is exposed to HF or BOE, take off clothes, wash exposed area for at least 5 minutes and notify lab management. Then use a special calcium gluconate cream. Wear gloves when applying the gel to avoid transfer of HF. Concentrated solutions of HF cause immediate pain.

HF etches glass, so it should not be kept in a glass bottle.

Don’t add water to an acid or base. Instead add a base or acid to water. When you add water to acid, the reaction is exothermic, meaning heat is released. The water evaporates and can splash acid onto you. For this reason always pour acid in water for dilutions. Do not add water to sulfuric acid, always add acid to water slowly.

Don’t mix solvents and acids. Always work with acids or solvents in an exhausted hood.

Pyrophoric – chemicals that spontaneously ignite in air. React spontaneously when exposed to oxygen. Silane is a pyrophoric gas.

Flash point – minimum temperature of a liquid at which it gives off sufficient vapor to form an ignitable mixture with air. Liquids with a flash point near room temperature can be ignited very easily.

Exothermic – a reaction in which heat is produced

Acute exposure -short term exposure (like from a chemical spill)

Chronic exposure – long term exposure (result of carelessness, ignorance or accident).

Acute and Chronic exposure have nothing to do with the severity of the exposure.

Local exposure – exposure limited to a small area of skin or mucous membrane

Systemic exposure – exposure of the whole body of system through adsorption, ingestion, or inhalation.

Threshold Limit Value (TLV) – average level to which you can be exposed 8 hours a day, 5 days a week  forever without adverse health effects.

IDLH – Immediately dangerous to Life and Health – the level represents the maximum value for which a 30 minute exposure will result in no irreversible or escape impairing effects.

STEL – short term exposure limits – maximum concentration to which you can be exposed for 15 minutes, up to 4 times a day without adverse effects.

Carcinogen – a substance producing or inciting cancerous growth

Mutagen – capable of inducing mutations

Teratogen – a substance causing damage to a fetus

Acetone – flammable solvent with a low flash point.

Spilled solvents should be contained immediately with spill control pillows.

In the case of an HF burn, medical attention is needed (including deep injections to neutralize the acid). Make sure medical personnel know it is an HF burn.

If you can smell resist in the resist room, something is wrong. Always wear the proper protective equipment and work in a well ventilated area at all times when dealing with photoresists.

If the toxic gas alarm sounds, evacuate the building via the nearest emergency exit

Do not loiter near the Toxic Gas Bunker even when there is no emergency

Do not attempt to enter the toxic gas room.

The following must be worn in the cleanroom at all times: hairnet or bouffant cap, eyeglasses, safety glasses, or goggles, face mask, gloves, cleanroom gown or jumpsuit, show covers or cleanroom boots.

When working with chemicals in the cleanroom, you have to wear a chemical apron or smock(supplied by nanolab), chemical visor or face shield(supplied by nanolab), and chemical resistant gloves (supplied by user).

No food or drink in nanolab, no pencils, wood, cardboard, or any other material that will continuously shed particles.

MSDS – Materials Safety Data Sheet

Chlorine – has a choking odor, causes severe tissue damage in lungs.

Anhydrous ammonia – high concentrations can be suffocating.

Liquid Nitrogen – more people die of asphyxiation by nitrogen than by any of the other toxic gases.

Phosphine – pulmonary irritant and poison.

Acetone – very flammable solvent with low flash point. Spilled solvents should be contained immediately with spill control pillows.

Piranha etch – heated mixture of hydrogen peroxide and sulfuric acid. When disposing of piranha (or any hydrogen peroxide solution), use a waste bottle with a vented cap, since the waste continues to react and decompose for a long time. Allow piranha solutions to cool to room temperature before pouring into a waste container.

Chlorinated Solvents – can cause cancer or organ damage. They should not be mixed with normal solvents in waste bottles. They do not rinse well from bottles and glassware, so to properly remove the solvent residue from the containers, the container should be thoroughly rinsed with Isopropanol.

Glycol Ethers – can cause birth defects, infertility.

When disposing of peroxide solutions – use a waste bottle with a vented cap, since waste continues to react for a long period of time.

If after using the nanolab you experience unexplained health effects such as difficulty breathing, asthma, rashes, or other symptoms that cannot be explained, you should notify the nanolab staff. If symptoms are severe, you should immediately seek medical attention, and inform the medical personnel which chemicals and processes you may have been exposed to.

Open containers or containers with unattached lids may not be carried around the lab, even if they only contain water.

When pouring wet chemicals in a fume hood, always wear a face shield, chemical apron, thick chemical resistant gloves.

If a solution is to be heated, only use a glass container. If using a HF acid containing solution, only use a plastic or Teflon container.

Everything, even water must be labeled.

Label using cleanroom tape.

Every label must have:Full Chemical Name and Concentration, Username, Date, Time Started, Time of Anticipated finish, Phone number if you are going to leave the cleanroom.

Only glass containers should be used on hotplates. HF acid solutions are never to be heated on hotplates.

Storing chemicals -  label with chemical name, professor, date chemical was brought into lab.

For a minor spill you should: wear an apron, visor and chemical gloves, turn off any hotplate or heat source, neutralize the spill if it contains acids or bases, contain the spill and soak up with spill pillows or wipes, place an appropriately filled out chemical waste label on the bag, place contaminated materials into a chemical waste bag and seal the bag, treat the chemical waste bag as hazardous waste and store on the appropriate shelf in the chemical waste cabinets, notify staff of the spill.

For a major spill, call for evacuation of the lab, call EH&S and wait outside lab entrance to tell emergency responders of the location and type of spill.

In the case of a fire or toxic gas alarm, take 10 seconds to secure tool you’re working on, walk to nearest exit, and meet at front of building away from toxic gas bunker.

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New iPod Nano and iPod Touch

So Apple just came out with the new iPod nano and Touch today, and I still have a few questions. Does the iPod nano have a camera like the previous models, and is it capable of playing games and movies? Will there be apps that you can get for the nano specifically? Also, the new iPod Touch can capture 720p video, but apple refrains from giving out the megapixel count of the back facing camera. Post the Answers in the Comments.

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Can marijuana cause lasting harm to the brain?

In short, the answer is yes. A Johns Hopkins study on the Dose-related neurocognitive effects of marijuana use found the following results:

As joints smoked per week increased, performance decreased on tests measuring memory, executive functioning, psychomotor speed, and manual dexterity. When dividing the group into light, middle, and heavy user groups, the heavy group performed significantly below the light group on 5 of 35 measures and the size of theeffect ranged from 3.00 to 4.20 SD units. Duration of use had little effect on neurocognitive performance. 1


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Is the 2011 Chevy Volt worth it?

The 2011 Chevy Volt has a release date of November 2010, and has a battery capable of powering the car for 40 miles before a gasoline engine is used as a generator for an additional 260 miles. The battery itself is made up of many lithium ion cells stacked together, and is rated at 16 kWh [1] Since 75% of people drive less than 40 miles per day, the battery alone should be enough for most people, with no gasoline necessary. Here the price of mile is calculated for electric vehicles like the Chevy Volt, and compared to the price per mile of both gasoline engine cars as well as hybrid vehicles like the Toyota Prius assuming that the daily driving is less than 40 miles.

In this cost analysis, the price of electricity and gasoline must be known. Data from the U.S. Bureau of Labor Statistics gives the following prices for both Los Angeles and the United States in May, 2010[2].

Los Angeles United States
Cost of Electricity (per kWh) $0.203 $0.10
Cost of Gasoline (per gallon) $3.116 $2.915

Using the data in the table, fully charging the Chevy Volt would cost $1.60 average for the US, or $3.248. Consequently, the cost per mile would be $0.08 / mile in Los Angeles, or an average of $0.04 / mile in the United States. Some of the best car repair prices are also in LA.

Lets do the same now for the price per mile of hybrids and gasoline only cars. Lets assume the car is the Toyota Prius 2010, with a mpg of about 50. At the LA price of gasoline, the price per mile is ($3.116/gal)(1 gal/50 miles)$0.062, or at the average US price of gasoline, the price per mile is $0.058. It is interesting to see how small the price per mile difference is in Los Angeles vs America in general. This can be accounted for the price of gasoline being relatively constant in America, while the price of electricity in Los Angeles is nearly twice that of the average in the US. Of course, these prices per mile assume the best fuel efficiency available today in the Toyota Prius or 50 mpg. Lets see how well pure gasoline cars fare at 20, 30 and 40 mpg. The same calculations were performed, and are summarized in the following table.

Price per mile in LA Price per mile in the US (average)
Electric car (Chevy Volt) $0.08 $0.04
Hybrid Car (Toyota Prius 2010) $0.062 $0.058
Gasoline Car (40 mpg) $0.078 $0.073
Gasoline Car (30 mpg) $0.10 $0.097
Gasoline Car (20 mpg) $0.16 $0.15

From the table, it is clear that in electric cars make little sense in Los Angeles, while they make a whole lot of sense on average in the United States. The Volt may end up giving Toyota a run for its money.

If the Prius is excluded simply on aesthetic grounds, electric cars like the Chevy Volt make economic sense in LA when compared to 20 and 30 mpg cars.

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Do Volcanoes emit more CO2 than humans?

The answer is No. It is a common misconception that volcanoes emit more carbon dioxide than humans. I found the raw data to prove it (https://spreadsheets.google.com/ccc?key=0Aqe2P9sYhZ2ndERxaWs2TU1iaDU1QW9ldzBzQXBpbkE&hl=en_GB#gid=0)

World human CO2 emission per year are 27 trillion metric tons. Volcanoes worldwide on the other hand only emit 180 million metric tons of CO2. Humans thus emit 150 times as much CO2 as all volcanoes combined per year. If you still think volcanoes suck, take them down a peg.

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