4.6 Accretion power Calculations based on the above accretion disc hypothesis show that if a mass m falls into the black hole, then the amount of energy it can radiate before it finally disappears is about 0.1 mc2, or about 10% of its rest energy. Other than matter-antimatter annihilation, this is the most efficient process for converting mass into energy ever conceived. A comparable figure for the nuclear fusion of hydrogen in stars is only 0.7% of the rest energy of the four hydrogen n
Clarke - Cross Theme DP184066 Cross Theme (1962) by Geoffrey Clarke. The Chapel of the Ascension, Bishop Otter Campus, University of Chichester, Chichester, West Sussex. Cast aluminium sculpture which represents the crucifixion. Detail view from the south west. Photographed by Steven Baker 2015.
© Historic England
PSYC 106 - Lecture 11 - 10/28/2010
PSYC 106 - Lecture 11
Metrotaal : Mind the gap Metrotaal: Mind the gap is een webgebaseerde omgeving die scholen, interne en externe begeleiders wil inspireren en professionaliseren bij het werken aan positief omgaan met talendiversiteit. Het pakket wordt gebruikt om de competenties van het …
3.2 Sub-state forms of nationalism The advancement of democracy in contemporary Western nation-states and the intensification of globalisation processes have encouraged the re-emergence of nationalist movements representing oppressed or silenced nations that demand the right to self-determination. In the case of ethnic groups formed by people of immigrant origin, democracy has provided them with the tools to pursue the right to develop and practice their indigenous culture and language alongside those of the host country. One
Virtual Maths , Shapes Space and Measure, Theodolite survey formula
Theodolite survey, information, formula, and calculation
Love of women and a place in the world: romantic love and political commitment in the life of a forc
Seminar given on 12 November 2014 by Professor Jonny Steinberg (African Studies Centre and the Centre for Criminology, University of Oxford), part of the RSC Michaelmas term 2014 Public Seminar Series. In the course of writing an intimate biography of a Somali forced migrant, Professor Steinberg has explored some of the more important decisions his subject has made over the course of his life. Among them are decisions about public matters: how to position himself in the politics of the Somali di
The French Verb: Aller
This is a very brief video which shows how to say a very common word in French--the verb 'aller', which means 'to go.' (00:19)
Enterprise in the sports industry
This presentation discusses Drucker's thesis that failure is a "good thing" if the opportunities that arise from such failure allow the development of personal and enterprise skills
Festival of Britain AA98_07001 South Bank Exhibition site, Lambeth, London. General view of the Dome of Discovery exhibition pavilionunder construction in Lambeth. It was designed by Ralph Tubb for the Festival of Britain in 1951. Photographed by Eric de Mare.
© Historic England
Thomas Burns Memorial Lectures 2016: Professor Choon-Leong Seow - The Story of Job: A contested clas
The Department of Theology and Religion presents lecture three of the 2016 Thomas Burns Memorial Lecture series. Given by Professor Choon-Leong Seow, Vanderbilt Divinity School, this presentation covers the topic 'Job as a Contested Classic'. 2 August 2016
References Wind Vectors for Hurricane Erin (WMS) 4.3.4 Wetlands Wetlands can be used in a similar way to buffer strips as a pollution control mechanism. They often present a relatively cost-effective and practical option for treatment, particularly in environmentally sensitive areas where large waste-water treatment plants are not acceptable. For example, Lake Manzala in Egypt has been suffering from severe pollution problems for several years. This lake is located on the northeastern edge of the Nile Delta, between Damietta and Port Said. Land reclamatio 2.4 Auction sites These are sites on the web which run conventional auctions. There are two types of auction: those that are carried out in real time, where participants log in to an auction site using a browser at a specified time and bid for an article until the highest price is reached and no other bids are forthcoming. The other type of site – and the most common – is where an item is offered for sale and a date advertised after which no more bids are accepted. Such sites make a profit from two sources Water Policy Forum: Arizona Solutions to Colorado River Supply Challenges Learning outcomes After studying this course, you should be able to: understand the central role played by the Roman emperor in the construction and development of culture, identity and power. 3D Cell Movie 2.2 Displacement #360: Can't give it up: The science behind addiction and the brain
This visualization shows wind vectors for Hurricane Erin on September 10, 2001. Wind direction and speed are represented by the direction and speed of moving arrows, respectively. This animation represents a single measurement taken by the SeaWinds instrument on the QuikSCAT satellite, taken at 14:27:00 UTC on September 10, 2001. The WMS version of this animation which is available through the SVS Image Server (http://aes.gsfc.nasa.gov) presents this animation with a different timestamp for each
On April 10, 2015, Arizona Senator Jeff Flake convened a water policy forum at the University of Arizona to hear about current Colorado River supply challenges and future strategies. UA President Ann Weaver Hart provided opening remarks and introduced the Senator. Senator Flake set the stage for a panel of distinguished experts to discuss Colorado River challenges and Arizona’s use of underground storage to provide for future water supplies. The forum was hosted by the UA Water Resources Resea
By: MCW_BBC Images of cells from Confocal Microscope System combined with fluorescence correlation spectroscopy
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