Lead

Lead (/lɛd/) is a chemical element in the carbon group with symbol Pb (from Latin: plumbum) and atomic number 82. It is a soft, malleable and heavy post-transition metal. Freshly cut, solid lead has a bluish-white color that soon tarnishes to a dull grayish color when exposed to air; the liquid metal has shiny chrome-silver luster. Lead is the heaviest (has the highest atomic number) non-radioactive element (two radioactive elements, namely technetium and promethium, are lighter), although the next higher element, bismuth, has one isotope with a half-life that is so long (over one billion times the estimated age of the universe) that it can be considered stable. Lead's four stable isotopes each have 82 protons, a magic number in the nuclear shell model of atomic nuclei. The isotope lead-208 also has 126 neutrons, another magic number, and is hence double magic, a property that grants it enhanced stability: lead-208 is the heaviest known stable nuclide.

Lead is used in building construction, lead-acid batteries, bullets and shot, weights, as part of solders, pewters, fusible alloys, and as a radiation shield.

Cutoff (steam engine)

In a steam engine, cutoff is the point in the piston stroke at which the inlet valve is closed. On a steam locomotive, the cutoff is controlled by the reversing gear.

The point at which the inlet valve closes and stops the entry of steam into the cylinder from the boiler plays a crucial role in the control of a steam engine. Once the valve has closed, steam trapped in the cylinder expands adiabatically. The steam pressure drops as it expands. A late cutoff delivers full steam pressure to move the piston through its entire stroke, for maximum start-up forces. But, since there will still be unexploited pressure in the cylinder at the end of the stroke, this is achieved at the expense of engine efficiency. In this situation the steam will still have considerable pressure remaining when it is exhausted resulting in the characteristic “chuff chuff” sound of a steam engine. An early cutoff has greater thermodynamic efficiency but results in a lower Mean effective pressure so less average force on the piston and is used for running the engine at higher speeds. The steam engine is the only thermodynamic engine design that can provide its maximum torque at zero revolutions per minute.

Lead (disambiguation)

Lead has two different pronunciations and several different meanings, usually related to either the chemical element lead (a heavy metal) or the verb to lead.

When pronounced /ˈlɛd/ (rhymes with "bed")

With this pronunciation, "lead" refers to:

The past tense of the verb to lead is led, pronounced /ˈlɛd/. It is often misspelled as lead.

See also:

When pronounced /ˈliːd/ (rhymes with "need")

With this pronunciation, "lead" generally means "first", "ahead", or "guide":

Evil (Grinderman song)

"Evil" (often stylised as EVIL) is a song by alternative rock band Grinderman, written collectively by Nick Cave, Warren Ellis, Martyn P. Casey and Jim Sclavunos. The song was featured as the fifth track on the band's second and final studio album, Grinderman 2 (2010). On Record Store Day 2011, "Evil" was released as a limited edition single, on 12" vinyl with an enclosed CD, with various remixes.

Track listing

References

Evil (disambiguation)

Evil describes willful, immoral acts.

Evil may also refer to:

Film, book and television

Music

Takaaki Watanabe

Takaaki Watanabe (渡辺 高章, Watanabe Takaaki), also known as Evil (stylized in all capital letters), is a professional wrestler trained by Animal Hamaguchi. Watanabe has worked for New Japan Pro Wrestling since his debut in 2011, and has also competed in the United States for companies including Ring of Honor and Global Force Wrestling.

Professional wrestling career

New Japan Pro Wrestling (2011–2013)

Watanabe made his debut for New Japan Pro Wrestling (NJPW) on May 13, 2011, wrestling primarily as a Young Lion and in the lower cards of shows and remained with the promotion until October 2013, when after King of Pro-Wrestling, announced that he was being sent on a learning excursion to the United States.

Ring of Honor (2014–2015)

At Global Wars '15 the first night May 15 he teamed with Silas Young in a losing effort against Gedo and Moose. The following night May 16, he was defeated by Silas Young.

On the June 27 episode of ROH Wrestling, he lost to Adam Page after Colby Corino attacked Watanabe. On the July 4 episode of ROH Wrestling Dalton Castle would defeat Takaaki Watanabe. On July 23, ROH announced that House of Truth member Donovan Dijak will battle Takaaki Watanabe in a singles match that will be taped exclusively for ROH's YouTube Wrestling Channel. This occurred July 24 at Death Before Dishonor XIII where Dijak defeated Watanabe.