In physics, power is the rate at which energy is transferred, used, or transformed. For example, the rate at which a light bulb transforms electrical energy into heat and light is measured in watts—the more wattage, the more power, or equivalently the more electrical energy is used per unit time.^[1][2]

Energy transfer can be used to do work, so power is also the rate at which this work is performed. The output power of an electric motor is the product of the torque the motor generates and the angular velocity of its output shaft. The power expended to move a vehicle is the product of the traction force of the wheels and the velocity of the vehicle.

The integral of power over time defines the work done. Because this integral depends on the trajectory of the point of application of the force and torque, this calculation of work is said to be "path dependent."

Ansel Adams photograph of Electrical Wires of the Boulder Dam Power Units, 1941-1942.

Units[link]

The dimension of power is energy divided by time. The SI unit of power is the watt (W), which is equal to one joule per second. Other units of power include ergs per second (erg/s), horsepower (hp), metric horsepower (Pferdestärke (PS) or cheval vapeur, CV), and foot-pounds per minute. One horsepower is equivalent to 33,000 foot-pounds per minute, or the power required to lift 550 pounds by one foot in one second, and is equivalent to about 746 watts. Other units include dBm, a relative logarithmic measure with 1 milliwatt as reference; (food) calories per hour (often referred to as kilocalories per hour); Btu per hour (Btu/h); and tons of refrigeration (12,000 Btu/h).

Average power[link]

As a simple example, burning a kilogram of coal releases much more energy than does detonating a kilogram of TNT,^[3] but because the TNT reaction releases energy much more quickly, it delivers far more power than the coal. If ΔW is the amount of work performed during a period of time of duration Δt, the average power P_avg over that period is given by the formula

Failed to parse (Missing texvc executable; please see math/README to configure.): P_\mathrm{avg} = \frac{\Delta W}{\Delta t}\,.

It is the average amount of work done or energy converted per unit of time. The average power is often simply called "power" when the context makes it clear.

The instantaneous power is then the limiting value of the average power as the time interval Δt approaches zero.

Failed to parse (Missing texvc executable; please see math/README to configure.): P = \lim _{\Delta t\rightarrow 0} P_\mathrm{avg} = \lim _{\Delta t\rightarrow 0} \frac{\Delta W}{\Delta t} = \frac{dW}{dt}\,.

In the case of constant power P, the amount of work performed during a period of duration T is given by:

Failed to parse (Missing texvc executable; please see math/README to configure.): W = PT\,.

In the context of energy conversion it is more customary to use the symbol E rather than W.

Mechanical power[link]

Power in mechanical systems is the combination of forces and movement. In particular, power is the product of a force on an object and the object's velocity, or the product of a torque on a shaft and the shaft's angular velocity.

Mechanical power is also described as the time derivative of work. In mechanics, the work done by a force F on an object that travels along a curve C is given by the line integral:

Failed to parse (Missing texvc executable; please see math/README to configure.): W_C = \int_{C} \bold{F} \cdot \mathrm{d}\bold{x} = \int_{C}\bold{F}\cdot \bold{v}dt,

where x defines the path C and v is the velocity along this path. The time derivative of the equation for work yields the instantaneous power,

Failed to parse (Missing texvc executable; please see math/README to configure.): P(t) = \mathbf{F}\cdot \mathbf{v} .

In rotational systems, power is the product of the torque τ and angular velocity ω,

Failed to parse (Missing texvc executable; please see math/README to configure.): P(t) = \mathbf{\tau} \mathbf{\omega}, \,

where ω measured in radians per second.

In fluid power systems such as hydraulic actuators, power is given by

Failed to parse (Missing texvc executable; please see math/README to configure.): P(t) = pQ, \!

where p is pressure in pascals, or N/m² and Q is volumetric flow rate in m³/s in SI units.

Mechanical advantage[link]

If a mechanical system has no losses then the input power must equal the output power. This provides a simple formula for the mechanical advantage of the system.

Let the input power to a device be a force F_A acting on a point that moves with velocity v_A and the output power be a force F_B acts on a point that moves with velocity v_B. If there are no losses in the system, then

Failed to parse (Missing texvc executable; please see math/README to configure.): P = F_A v_A = F_B v_B, \!

and the mechanical advantage of the system is given by

Failed to parse (Missing texvc executable; please see math/README to configure.): MA = \frac{F_B}{F_A} = \frac{v_A}{v_B}.

A similar relationship is obtained for rotating systems, where T_A and ω_A are the torque and angular velocity of the input and T_B and ω_B are the torque and angular velocity of the output. If there are no losses in the system, then

Failed to parse (Missing texvc executable; please see math/README to configure.): P = T_A \omega_A = T_B \omega_B, \!

which yields the mechanical advantage

Failed to parse (Missing texvc executable; please see math/README to configure.): MA = \frac{T_B}{T_A} = \frac{\omega_A}{\omega_B}.

These relations are important because they define the maximum performance of a device in terms of velocity ratios determined by its physical dimensions. See for example gear ratios.

Power in optics[link]

In optics, or radiometry, the term power sometimes refers to radiant flux, the average rate of energy transport by electromagnetic radiation, measured in watts. The term "power" is also, however, used to express the ability of a lens or other optical device to focus light. It is measured in dioptres (inverse metres), and equals the inverse of the focal length of the optical device.

Electrical power[link]

The instantaneous electrical power P delivered to a component is given by

Failed to parse (Missing texvc executable; please see math/README to configure.): P(t) = I(t) \cdot V(t) \,

where

P(t) is the instantaneous power, measured in watts (joules per second)

V(t) is the potential difference (or voltage drop) across the component, measured in volts

I(t) is the current through it, measured in amperes

If the component is a resistor with time-invariant voltage to current ratio, then:

Failed to parse (Missing texvc executable; please see math/README to configure.): P=I \cdot V = I^2 \cdot R = \frac{V^2}{R} \,

where

Failed to parse (Missing texvc executable; please see math/README to configure.): R = V/I \,

is the resistance, measured in ohms.

Peak power and duty cycle[link]

In a train of identical pulses, the instantaneous power is a periodic function of time. The ratio of the pulse duration to the period is equal to the ratio of the average power to the peak power. It is also called the duty cycle (see text for definitions).

In the case of a periodic signal Failed to parse (Missing texvc executable; please see math/README to configure.): s(t)

of period Failed to parse (Missing texvc executable; please see math/README to configure.): T

, like a train of identical pulses, the instantaneous power Failed to parse (Missing texvc executable; please see math/README to configure.): p(t) = |s(t)|^2

is also a periodic function of period Failed to parse (Missing texvc executable; please see math/README to configure.): T

. The peak power is simply defined by:

Failed to parse (Missing texvc executable; please see math/README to configure.): P_0 = \max [p(t)]

.

The peak power is not always readily measurable, however, and the measurement of the average power Failed to parse (Missing texvc executable; please see math/README to configure.): P_\mathrm{avg}

is more commonly performed by an instrument.  If one defines the energy per pulse as:

Failed to parse (Missing texvc executable; please see math/README to configure.): \epsilon_\mathrm{pulse} = \int_{0}^{T}p(t) \mathrm{d}t \,

then the average power is:

Failed to parse (Missing texvc executable; please see math/README to configure.): P_\mathrm{avg} = \frac{1}{T} \int_{0}^{T}p(t) \mathrm{d}t = \frac{\epsilon_\mathrm{pulse}}{T} \,

.

One may define the pulse length Failed to parse (Missing texvc executable; please see math/README to configure.): \tau

such that Failed to parse (Missing texvc executable; please see math/README to configure.): P_0\tau = \epsilon_\mathrm{pulse}
so that the ratios

Failed to parse (Missing texvc executable; please see math/README to configure.): \frac{P_\mathrm{avg}}{P_0} = \frac{\tau}{T} \,

are equal. These ratios are called the duty cycle of the pulse train.

See also[link]

• Simple machines
• Mechanical advantage
• Motive power
• Orders of magnitude (power)
• Pulsed power
• Intensity — in the radiative sense, power per area
• Power gain — for linear, two-port networks.

References[link]

1. ^ Chapter 6 § 7 Power Halliday and Resnick, Fundamentals of Physics 1974.
2. ^ Chapter 13, § 3, pp 13-2,3 The Feynman Lectures on Physics Volume I, 1963
3. ^ Burning coal produces around 15-30 megajoules per kilogram, while burning TNT produces about 4.7 megajoules per kilogram. For the coal value, see Fisher, Juliya (2003). "Energy Density of Coal". The Physics Factbook. http://hypertextbook.com/facts/2003/JuliyaFisher.shtml. Retrieved 30 May 2011.  For the TNT value, see the article TNT equivalent.

Look up power in Wiktionary, the free dictionary.

Power may refer to:

Philosophy[link]

• Power (philosophy), the ability to control people or events

Physics[link]

• Power (physics), the rate at which work is performed or energy is converted
• Electric power, the rate at which electrical energy is transferred by a circuit
• Human power, the rate of work performed by a human
• Motive power, an agent used to create motion
• AC power, power in an alternating current electric circuit
• Optical power, the degree to which a lens converges or diverges light
• Transmitter power output, the power used by a radio transmitter
• Effective radiated power, a standardized theoretical measurement of the power of a radio transmitter
• Power spectral density, a real function denoting the power or energy of a signal
• Electrical power industry, companies generating electricity for the electrical grid

Mathematics[link]

• Exponentiation
• Statistical power
• Power of a point

Surname[link]

• Power (name)

Computing[link]

• IBM Power (software), an IBM systems software operating system enhancement package that provided spooling facilities for the IBM/370
• IBM POWER, a RISC microprocessor architecture developed by IBM
• POW-R, a set of commercial dithering and noise shaping algorithms used in digital audio bit-depth reduction

Film[link]

• Power (1986 film), a 1986 film about how political power affects both those who wield it and the people they try to control
• Power (2012 film), an upcoming Bollywood film
• The Power (film), a 1968 science fiction film, based on the Frank M. Robinson novel

Music[link]

Albums

• Power (Barrabás album)
• Power (Boys Noize album)
• Power (Ice-T album)
• Power (Kansas album)
• Power (Q and Not U album)
• The Power (album), an album by Vanessa Amorosi
• Power, an album by SSD (band)
• Power, an album by Lakeside (band)

Songs

• "Power" (Helloween song)
• "Power" (Kanye West song)
• "The Power" (Snap! song)
• "Power", a song by Lipps Inc. from Mouth to Mouth
• "Power", a song by Rainbow from Straight Between the Eyes
• "Power", a song by The Temptations
• "Power" (KMFDM song)
• "The Power", a song by Manowar from Louder Than Hell
• "The Power", a song by Cher from Believe
• "Power" (Juvenile song)
• "Power", a song by Fields of the Nephilim
• Power, a song by B.A.P

Literature[link]

• Power (novel), a 1962 novel by Howard Fast detailing the rise of the fictional Benjamin Holt to lead a powerful labor union
• Power (2004 novel), a by J. A. Stiehl novel about a boy who develops superhuman abilities of nearly god-like proportions
• Power (play), a play by Nick Dear that explores the events that led King Louis XIV of France to become absolute monarch
• The Power (novel), a 1956 book by Frank M. Robinson, on which the 1968 film is based
• The Power (self-help book), a 2010 book by Rhonda Byrne
• Girl Got Game, originally Power!! a manga series about a girl whose father forces her to pretend to be a boy to play on a basketball team
• Power: A New Social Analysis, a sociology book by Bertrand Russell that defines powers as one's ability to achieve goals

Sports and games[link]

• West Virginia Power, a minor league baseball team of the South Atlantic League and the Class A affiliate of the Pittsburgh Pirates
• Port Adelaide Football Club, nicknamed "Power", an Australian rules football club based in Port Adelaide, South Australia
• Phil Taylor, an English darts champion, nicknamed "The Power", who has won a record 15 World Championships

Other[link]

• 2C-P, this psychedelic phenethylamine is popularly known as power
• Power, Montana, a census-designated place in Teton County, Montana, United States
• Power98FM, an English-language radio station in Singapore, owned by SAFRA Radio
• De Coelesti Hierarchia, a Pseudo-Dionysian work on angelology which has an order of angels called "Powers"
• The Power (XM), an XM satellite radio channel
• Pittsburgh Power, American Football League team in Pittsburgh, PA
• J. D. Power and Associates, a global marketing information services firm
• Power Corporation of Canada, a Canadian conglomerate known for its active participation in Canadian politics

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

This article contains Japanese text. Without proper rendering support, you may see question marks, boxes, or other symbols instead of kanji and kana.

Michio Kaku (加来 道雄, Kaku Michio^?, born January 24, 1947) is an American theoretical physicist, the Henry Semat Professor of Theoretical Physics in the City College of New York of City University of New York, a co-founder of string field theory,^[1] a futurist, and a "communicator" and "popularizer" of science. He has written several books about physics and related topics; he has made frequent appearances on radio, television, and film; and he writes extensive online blogs and articles. He has written two New York Times best sellers, Physics of the Impossible (2008) and Physics of the Future (2011). He has hosted several TV specials for BBC-TV, the Discovery Channel, and the Science Channel.

Early life and education[link]

Kaku was born in San Jose, California to Japanese immigrant parents. His grandfather came to the United States to take part in the clean-up operation after the 1906 San Francisco Earthquake^{[citation needed]}. His father was born in California but was educated in Japan and spoke little English. Both his parents were put in the Tule Lake War Relocation Center, where they met and where his two brothers were born.

At Cubberley High School in Palo Alto, Kaku assembled an atom smasher in his parents' garage for a science fair project.^[2] At the National Science Fair in Albuquerque, New Mexico, he attracted the attention of physicist Edward Teller, who took Kaku as a protégé, awarding him the Hertz Engineering Scholarship. Kaku graduated summa cum laude from Harvard University in 1968 and was first in his physics class. He attended the Berkeley Radiation Laboratory at the University of California, Berkeley and received a Ph.D. in 1972, and in 1972 he held a lectureship at Princeton University.

During the Vietnam War, Kaku completed his U.S. Army basic training at Fort Benning, Georgia and his advanced individual training at Fort Lewis, Washington.^[3] However, the Vietnam War ended before he was deployed as an infantryman.

Academic career[link]

Kaku became a visiting professor at the Institute for Advanced Study in Princeton,^[4] and New York University.^[5] He currently holds the Henry Semat Chair and Professorship in theoretical physics at the City College of New York.^[6]

Kaku has had over 70 articles published in physics journals such as Physical Review, covering topics such as superstring theory, supergravity, supersymmetry, and hadronic physics.^[7] In 1974, along with Prof. Keiji Kikkawa of Osaka University, he authored the first papers describing string theory in a field form.^[8][9]

Kaku is the author of several textbooks on string theory and quantum field theory.

Popular science[link]

Kaku is most widely known as a popularizer of science.^[10] He has written books and appeared on many television programs as well as film. He also hosts a weekly radio program.

Books[link]

Kaku is the author of various popular science books.

• Hyperspace (1994)
• Beyond Einstein (with Jennifer Thompson) (1995)
• Visions: How Science Will Revolutionize the 21st Century^[11] (1998)
• Einstein's Cosmos (2004)
• Parallel Worlds (2004)
• Physics of the Impossible (2008)
• Physics of the Future (2011)

Hyperspace was a best-seller and was voted one of the best science books of the year by both The New York Times^[10] and The Washington Post. Parallel Worlds was a finalist for the Samuel Johnson Prize for non-fiction in the UK.^[12]

Radio[link]

Kaku is the host of the weekly, one-hour radio program Explorations, produced by the Pacifica Foundation's WBAI in New York. "Explorations" is syndicated to community and independent radio stations and makes previous broadcasts available on the program's website. Kaku defines the show as dealing with the general topics of science, war, peace, and the environment.

In April 2006, Kaku began broadcasting Science Fantastic on 90 commercial radio stations, the only nationally syndicated science program on commercial radio in the United States. It is syndicated by Talk Radio Network and now reaches 130 radio stations and America's Talk on XM. The program is formatted as a live listener call-in show, focusing on "futurology," which he defines as the future of science.^{[citation needed]} Featured guests include Nobel laureates and top researchers on the topics of string theory, time travel, black holes, gene therapy, aging, space travel, artificial intelligence, and SETI. When Kaku is busy filming for television, Science Fantastic goes on hiatus, sometimes for several months. Kaku is also a frequent guest on many programs, where he is outspoken in all areas and issues he considers of importance, such as the program Coast to Coast AM, where on 30 November 2007, he reaffirmed his belief that there is a 100% probability of extraterrestrial life in the universe.^[13]

Kaku has appeared on The Opie and Anthony Show a number of times, discussing popular fiction such as Back to The Future, Lost, and the theories behind time-travel that these and other fictional entertainment focus on.

Television and film[link]

Kaku has appeared in many forms of media and on many programs and networks, including Good Morning America, The Screen Savers, Larry King Live, 60 Minutes, Nightline, 20/20, Naked Science, CNN, ABC News, CBS News, NBC News, Al Jazeera English, Fox News Channel, The History Channel, Conan, The Science Channel, The Discovery Channel, TLC, Countdown with Keith Olbermann, The Colbert Report, The Art Bell Show and its successor, Coast To Coast AM, BBC World News America, The Opie & Anthony Show, The Covino & Rich Show, Head Rush, The Late Show with David Letterman, and Real Time with Bill Maher.

In 1999, Kaku was one of the scientists profiled in the feature-length film Me and Isaac Newton, directed by Michael Apted. It played theatrically in the United States, was later broadcast on national TV, and won several film awards.^{[citation needed]}

In 2005, Kaku appeared in the short documentary Obsessed & Scientific. The film is about the possibility of time travel and the people who dream about it. It screened at the Montreal World Film Festival and a feature film expansion is in development talks. Kaku also appeared in the ABC documentary UFOs: Seeing Is Believing, in which he suggested that while he believes it is extremely unlikely that extraterrestrials have ever actually visited Earth, we must keep our minds open to the possible existence of civilizations a million years ahead of us in technology, where entirely new avenues of physics open up. He also discussed the future of interstellar exploration and alien life in the Discovery Channel special Alien Planet as one of the multiple speakers who co-hosted the show, and Einstein's Theory of Relativity on The History Channel.

In February 2006, Kaku appeared as presenter in the BBC-TV four-part documentary Time which seeks to explore the mysterious nature of time. Part one of the series concerns personal time, and how we perceive and measure the passing of time. The second in the series deals with cheating time, exploring possibilities of extending the lifespan of organisms. The geological time covered in part three explores the ages of the earth and the sun. Part four covers the topics of cosmological time, the beginning of time and the events that occurred at the instant of the big bang.

On January 28, 2007, Kaku hosted the Discovery Channel series 2057. This three-hour program discussed how medicine, the city, and energy could change over the next 50 years.

In 2008, Kaku hosted the three-hour BBC-TV documentary Visions of the Future, on the future of computers, medicine, and quantum physics, and he appeared in several episodes of the History Channel's Universe series.

On December 1, 2009, he began hosting a 12-episode weekly TV series for the Science Channel at 10 pm, called Sci Fi Science: Physics of the Impossible, based on his best-selling book. Each 30-minute episode discusses the scientific basis behind imaginative schemes, such as time travel, parallel universes, warp drive, star ships, light sabers, force fields, teleportation, invisibility, death stars, and even superpowers and flying saucers. Each episode includes interviews with the world's top scientists working on prototypes of these technologies, interviews with science fiction fans, clips from science fiction movies, and special effects and computer graphics. Although these inventions are impossible today, the series discusses when these technologies might become feasible in the future.^[14]

In 2010, he began to appear in a series on the website Gametrailers.com called Science of Games, discussing the scientific aspects of various popular video games such as Mass Effect 2 and Star Wars: The Force Unleashed.

Kaku is popular in mainstream media because of his knowledge and his accessible approach to presenting complex subjects in science. While his technical writings are confined to theoretical physics, his public speaking and media appearances cover a broad range of topics, from the Kardashev scale to more esoteric subjects such as wormholes and time travel. In January 2007, Kaku visited Oman. While there, he talked at length to select members of that country's decision makers. In an interview with local media, Dr Kaku elaborated on his vision of mankind's future. Kaku considers climate change and terrorism as serious threats in man's evolution from a Type 0 civilization to Type 1.^[15]

He is pictured in Symphony of Science's newest song (as of September 6, 2011), 'The Quantum World.'

On October 11, 2010, Michio Kaku appeared in the BBC program "What Happened Before the Big Bang" (along with Laura Mersini-Houghton, Andrei Linde, Roger Penrose, Lee Smolin, Neil Turok, and other notable cosmologists and physicists), where he propounded his theory of the universe created out of nothing.^[16]

Social policy advocacy[link]

Kaku has publicly stated his concerns over matters including the anthropogenic cause of global warming, nuclear armament, nuclear power and the general misuse of science.^[17] He was critical of the Cassini–Huygens space probe because of the 72 pounds (33 kg) of plutonium contained in the craft for use by its radioisotope thermoelectric generator. Conscious of the possibility of casualties if the probe's fuel were dispersed into the environment during a malfunction and crash as the probe was making a 'sling-shot' maneuver around earth, Kaku publicly criticized NASA's risk assessment.^[18] He has also spoken on the dangers of space junk and called for more and better monitoring. Kaku is generally a vigorous supporter of the exploration of outer space, believing that the ultimate destiny of the human race may lie in extrasolar planets; but he is critical of some of the cost-ineffective missions and methods of NASA.

Kaku credits his anti-nuclear war position to programs he heard on the Pacifica Radio network, during his student years in California. It was during this period that he made the decision to turn away from a career developing the next generation of nuclear weapons in association with Edward Teller and focused on research, teaching, writing and media.^{[citation needed]} Kaku joined with others such as Helen Caldicott, Jonathan Schell, Peace Action and was instrumental in building a global anti-nuclear weapons movement that arose in the 1980s, during the administration of U.S. President Ronald Reagan.

Kaku was a board member of Peace Action and on the board of radio station WBAI-FM in New York City where he originated his long running program, Explorations, that focused on the issues of science, war, peace and the environment.

His remark from an interview in support of SETI, "We could be in the middle of an intergalactic conversation...and we wouldn't even know.", is used in the third Symphony of Science installment "Our Place in the Cosmos".

Personal life[link]

Kaku is married to Shizue Kaku and has two daughters.^[19]

Bibliography[link]

References[link]

External links[link]

Wikimedia Commons has media related to: Michio Kaku

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• Getting Physical: Dr. Michio Kaku Explains Einstein's Genius
• Russia Takes Aim at Asteroids, op-ed on asteroid defense, Wall St. Journal, Jan. 5, 2010
• The Skeptics' Guide To The Universe interview
• Michio Kaku at the Internet Movie Database
• Michio Kaku on National Public Radio
• About Michio Kaku
• Video: Michio Kaku discusses Physics of the Future on March 23, 2011, on Forum Network.
• In Depth interview with Kaku, October 3, 2010

Kelvin Pope, better known as The Mighty Duke (1932 – January 14, 2009)^[1] was a Trinidadian calypsonian. He was born in Point Fortin.

Pope left a career working at Shell Oil to perform calypso music. In the 1950s, he played locally in his hometown, then began playing in San Fernando at the Southern Brigade Calypso Tent. In 1964 he relocated to Port of Spain and performed at the Original Young Brigade.

He won the National Calypso Monarch title for four years straight (1968-71), and was noted for exploring ideas such as black consciousness and global politics in his lyrics.^[1] Lord Nelson was one of many for whom he composed music. In 1987, his "Thunder" was awarded the National Road March prize.^[2]

Pope died on January 14, 2009 at 1:05 pm in Saint Clair, Trinidad and Tobago of myelofibrosis, which he had been battling for five years.

References[link]

This Trinidadian biographical article is a stub. You can help Wikipedia by expanding it. v t e

This article on a Caribbean musician is a stub. You can help Wikipedia by expanding it. v t e

Katie Herzig
Background information
Birth name	Katheryne Lee Herzig
Born	California, United States (1980-03-06) March 6, 1980 (age 32)
Origin	Fort Collins, Colorado, United States
Genres	Folk rock
Occupations	Musician, singer-songwriter
Instruments	guitar, banjo, drums
Years active	1997 – present
Labels	Independent
Associated acts	Newcomers Home Ten Out of Tenn
Website	katieherzig.com

Katie Herzig is a singer-songwriter from Fort Collins, Colorado.

Biography[link]

Early life[link]

Katie Herzig was born in California to a musical family. When she was a year old her family moved to Fort Collins, Colorado where she attended Rocky Mountain High School.^[1] In her senior year of high school, Herzig received an acoustic guitar from her father which prompted her to begin playing the instrument. She attended the University of Colorado at Boulder where she majored in journalism with emphasis in broadcast production.^[2] In 2000, she graduated with a bachelor's degree in journalism.^[3]

Early career[link]

While attending the University of Colorado, Herzig formed the band Newcomers Home with Tim and Laurie Thornton and Andrew Jed in the summer of 1997.^[4] Newcomers Home's music was primarily influenced by bluegrass and folk music; however, over time, the band's work became more influenced by pop music. Although initially Herzig suffered from stage fright and confined herself to singing backing vocals and playing the drums for the band, she eventually began to play the guitar and became a lead singer. The band broke up in 2006, leaving Herzig free to fully pursue her solo career.^[2]

Solo career[link]

In 2004, Herzig released her first solo album, Watch Them Fall. The title track was featured on the WB television show Smallville. Another song, "Say Goodbye" appeared in the 2007 film, X's & O's.^[5] In 2006, she released a second solo album, Weightless which she recorded using Pro Tools and instruments that she borrowed from friends.^[6] She co-wrote one track from the album with Kim Richey, "Jack and Jill".^[7] It was also featured on an episode of One Tree Hill and Pretty Little Liars. Two tracks from the album "Fool's Gold" and "Sweeter than This" were featured on Grey's Anatomy. Her song "Where the Road Meets the Sun" was featured on the Season 5 finale of Grey's Anatomy. The song "Wish You Well" was featured in the sixth season of Grey's Anatomy and in the first season of Pretty Little Liars. "Lost & Found" was featured in the third episode of the eighth season of Grey's Anatomy as well as on the third season finale of Cougar Town. "Closest I Get" was also featured on a 2012 episode of Grey's Anatomy.

After the release of Weightless, Herzig moved to Nashville, Tennessee to further pursue her solo career. She then toured with the Fray and as a member of the Paste Songwriters Tour.

On May 18, 2008 Herzig released a new album Apple Tree, which is so named because the title is mentioned in three different songs on the album.^[2] She has since appeared on the KCRW radio program, Morning Becomes Eclectic and joined American Songwriter magazine's Ten Out of Tenn tour.^[8] On September 18, the song "I Hurt Too" from Apple Tree was featured on the police procedural television drama Bones. "How the West Was Won", also from Apple Tree, plays over the closing credits of HBO's Bored to Death episode, "The Case of the Grievous Clerical Error!". She also appeared in the 2008 independent documentary film, A Nashville State of Mind.^[9] 'Forevermore' is featured on Australian TV in supermarket store Target's 2010 ad campaign. Herzig's 2009 single "Hey Na Na" was used on the pilot episode of the Lifetime series: Drop Dead Diva. It was also used in "Going the Distance" starring Drew Barrymore and Justin Long, and the Dove Chocolate Bar commercial, More to Love.

Awards[link]

Herzig co-wrote the song "Heaven's My Home" with Ruby Amanfu which was performed by the Duhks and nominated for a 2007 Grammy award for Best Country Performance.^[10] The song, performed by Sam & Ruby, also appeared in the 2008 film The Secret Life of Bees. Herzig was a finalist at the 2004 Planet Bluegrass Folk Festival songwriting competition.^[11]

Discography[link]

Studio albums[link]

• Watch Them Fall (2004)
• Weightless (2006)
• Apple Tree (2008)
• Live in Studio: Acoustic Trio (2009)
• The Waking Sleep (2011)

References[link]

External links[link]

• Katie Herzig's official website
• KCRW performance on KCRW's Morning Becomes Eclectic