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Globular cluster

A globular cluster is a spherical collection of stars that orbits a galactic core. Globular clusters are tightly bound by gravity, which gives them their spherical shapes, high stellar densities toward their centers; the name of this category of star cluster is derived from globulus -- a small sphere. A globular cluster is known as a globular. Globular clusters are found in the halo of a galaxy and contain more stars, are much older than the less dense open clusters, which are found in the disk of a galaxy. Globular clusters are common. Larger galaxies can have more: The Andromeda Galaxy, for instance, may have as many as 500; some giant elliptical galaxies, such as M87, have as many as 13,000 globular clusters. Every galaxy of sufficient mass in the Local Group has an associated group of globular clusters, every large galaxy surveyed has been found to possess a system of globular clusters; the Sagittarius Dwarf galaxy, the disputed Canis Major Dwarf galaxy appear to be in the process of donating their associated globular clusters to the Milky Way.

This demonstrates. Although it appears that globular clusters contain some of the first stars to be produced in the galaxy, their origins and their role in galactic evolution are still unclear, it does appear clear that globular clusters are different from dwarf elliptical galaxies and were formed as part of the star formation of the parent galaxy, rather than as a separate galaxy. The first known globular cluster, now called M 22, was discovered in 1665 by Abraham Ihle, a German amateur astronomer. However, given the small aperture of early telescopes, individual stars within a globular cluster were not resolved until Charles Messier observed M 4 in 1764; the first eight globular clusters discovered are shown in the table. Subsequently, Abbé Lacaille would list NGC 104, NGC 4833, M 55, M 69, NGC 6397 in his 1751–1752 catalogue; when William Herschel began his comprehensive survey of the sky using large telescopes in 1782 there were 34 known globular clusters. Herschel discovered another 36 himself and was the first to resolve all of them into stars.

He coined the term "globular cluster" in his Catalogue of a Second Thousand New Nebulae and Clusters of Stars published in 1789. The number of globular clusters discovered continued to increase, reaching 83 in 1915, 93 in 1930 and 97 by 1947. A total of 152 globular clusters have now been discovered in the Milky Way galaxy, out of an estimated total of 180 ± 20; these additional, undiscovered globular clusters are believed to be hidden behind the gas and dust of the Milky Way. Beginning in 1914, Harlow Shapley began a series of studies of globular clusters, published in about 40 scientific papers, he examined the RR Lyrae variables in the clusters and used their period–luminosity relationship for distance estimates. It was found that RR Lyrae variables are fainter than Cepheid variables, which caused Shapley to overestimate the distances of the clusters. Of the globular clusters within the Milky Way, the majority are found in a halo around the galactic core, the large majority are located in the celestial sky centered on the core.

In 1918, this asymmetrical distribution was used by Shapley to make a determination of the overall dimensions of the galaxy. By assuming a spherical distribution of globular clusters around the galaxy’s center, he used the positions of the clusters to estimate the position of the Sun relative to the galactic center. While his distance estimate was in significant error, it did demonstrate that the dimensions of the galaxy were much greater than had been thought. Shapley's measurements indicated that the Sun is far from the center of the galaxy contrary to what had been inferred from the nearly distribution of ordinary stars. In reality, most ordinary stars lie within the galaxy's disk and those stars that lie in the direction of the galactic centre and beyond are thus obscured by gas and dust, whereas globular clusters lie outside the disk and can be seen at much further distances. Shapley was subsequently assisted in his studies of clusters by Henrietta Swope and Helen Battles Sawyer. In 1927–1929, Shapley and Sawyer categorized clusters according to the degree of concentration each system has toward its core.

The most concentrated clusters were identified as Class I, with successively diminishing concentrations ranging to Class XII. This became known as the Shapley–Sawyer Concentration Class. In 2015, a new type of globular cluster was proposed on the basis of observational data: dark globular clusters; the formation of globular clusters remains a poorly understood phenomenon and it remains uncertain whether the stars in a globular cluster form in a single generation or are spawned across multiple generations over a period of several hundred million years. In many globular clusters, most of the stars are at the same stage in stellar evolution, suggesting that they formed at about the same time. However, the star formation history varies from cluster to cluster, with some clusters showing distinct populations of stars. An example of this is the globular clusters in the Large Magellanic Cloud that exhibit a bimodal population. During their youth, these LMC clusters may have encountered giant molecular clouds that triggered a second round of star f

Anjan Mukherjee

Anjan Mukherjee is an American businessman and investor, a senior executive at the Blackstone Group, a global investment management firm, served as Counselor to the Secretary of the U. S. Treasury in the Obama Administration, he attended Lexington High School. Mukherjee attended Harvard College, where he graduated magna cum laude as a Harry S. Truman Scholar, received his MBA at Harvard Business School. Mukherjee joined the Blackstone Group in 2001 and was a Senior Managing Director in the private equity department and was a member of its Investment Committee, he led a number of the firm's most notable transactions including its investments in Change Healthcare, AVINTIV, Stiefel Laboratories and Celanese. Mukherjee worked at Thomas H. Lee Company and Morgan Stanley, in the mergers and acquisitions department, he joined the Board of Directors of TTEC Holdings in 2009. Mukherjee served as Counselor to the Secretary of the U. S. Treasury from 2015 to 2017 under President Obama, he served as Deputy Assistant Secretary of Financial Institutions Policy during this time.

He advised on a wide range of domestic and international issues related to financial markets and financial institutions policy. He worked to strengthen banking and derivatives regulation and was involved with improving cyber-security for the financial sector. Mukherjee took a leave of absence from Blackstone in 2008 to join the Presidential Transition Team of Barack Obama focusing on economic policy and international trade issues

God in Search of Man

God in Search of Man: A Philosophy of Judaism is a work on Jewish philosophy by Rabbi Dr. Abraham Joshua Heschel. Heschel saw the work's title as a paradoxical formula, rooted in the rabbinic tradition, summarizing human history as seen in the Bible: God in search of man. In God in Search of Man Heschel articulates a belief in a personal God who sees humankind as partners in creation, forging a world filled with justice and compassion. God in Search of Man: A Philosophy of Judaism is a companion volume to Heschel's earlier work Man Is Not Alone: A Philosophy of Religion where he delineates experiential and philosophical interpretations of Jewish views of humanity and the world, while in God in Search of Man Heschel focuses on Jewish revelation and orthopraxis. In God in Search of Man, Heschel discusses the nature of religious thought, how thought becomes faith, how faith creates responses in the believer, he discusses ways that people can seek God's presence, the "radical amazement" that we receive in return.

He offers a criticism of nature worship. Heschel, like his teacher Martin Buber, stresses the personal relationship between God and mankind, defined by Heschel as the Godly pathos and mankind's radical amazement; the first section concludes with a study of Jews as a chosen people. Section two deals with the idea of revelation, what it means for one to be a prophet; this section gives us Heschel's idea of revelation as an event, as opposed to a process. This relates to Israel's commitment to God. Section three discusses his views of how a Jew should understand the nature of Judaism as a religion. Heschel discusses and rejects the idea that mere faith alone is enough, but cautions against rabbis he sees as adding too many restrictions to Jewish law, he discusses the need to correlate ritual observance with spirituality and love, the importance of Kavanah when performing mitzvot. He engages in a discussion of religious behaviorism—when people strive for external compliance with the law, yet disregard the importance of inner devotion.

Abraham Joshua Heschel Jewish philosophy

Tong Yao

Tong Yao is a Chinese actress, best known in film for portraying Chen Shu in A Big Deal, May in Snowfall in Taipei and Annie Yang in To Love Somebody, has received critical acclaim for her television work as Meng Xizi in Militia Ge Erdan and Zhou Xiaobei in Three Bosom Girls. On August 11, 1985, Tong was born in Yunnan. In 1996, she attended Dance Art School in Beijing, she returned to Kunming in the following year. She spent a year studying Hulusi, a free reed wind instrument from China and the Shan State, she entered the Central Academy of Drama in 2002. In 2002, Tong made her television debut in Tracks In The Snowy Forest, playing a health worker in the Northeast Democratic United Army named Bai Ru. In 2006, Tong amassed a member of television credits namely My Sun, Walking Duster, Life of Dragon and Tiger, she had a minor role as Pan Ying in a historical television series. Tong had a cameo appearance in Moonlight Lady, a historical television series based on the real life on Song dynasty poet Li Qingzhao.

That same year, she appeared in Repeat an Error and I Want to Understand You. In 2008, she co-starred with Lin Shen in the romantic comedy film Afraid to Say Love You, her film debut. In the following year, Tong appeared in the film Nine Dragon Jade, her 2010 work includes Simple Dish, Lei Feng, Military Honour, Wind Up the First Pass and Qiao Longbiao. That same year, she starred with Xu Shaoyang in the thriller horror film Snapper. In 2011, Tong was cast in comedy film A Big Deal; as lead actress, she co-starred Ni Ping in the romantic comedy film Wings. And she starred as May, reuniting her with co-star Chen Bolin, who played her romantic interest, in Snowfall in Taipei, a film adaptation based on the Japanese novel of the same name; that same year, she was cast in war drama Militia Ge Erdan, playing the wife of Huang Bo's character. In 2013, Tong played the female lead role in a business-themed romantic drama film Day of Redemption. Tong played the lead role in Francis Sung's directed film To Love Somebody.

She had a supporting role in The White Haired Witch of a fantasy wuxia film. She co-starred with Jiang Xin in the television series Three Bosom Girls. In 2015, she played the love interest of Li Chen's character in the television series Boys to Men. In 2016, three television work she headlined, Stepmother Xu Duoduo, My Spicy Girlfriend and Customize Happiness premiered. In 2018, Tong starred as a key supporting role in the historical drama Ruyi's Royal Love in the Palace, alongside Wallace Huo and Zhou Xun, she gained popularity for her portrayal of the role as Gao Xiyue. The same year, she starred in the period drama Like a Flowing River, her performance garnered her the Best Supporting Actress at the Magnolia Awards. In 2019, Tong was cast in the female-centric modern drama Nothing But Thirty. On October 1, 2019, Tong Yao and Wang Ran, seventeen years her senior, married in an ancient castle in Italy. Wang Ran is the CEO of CEC Capital. Tong Yao on IMDb Tong Yao on Sina Weibo Tong Yao on Sinablog

Special Cases

"Special Cases" is a song by English trip hop collective Massive Attack, featuring vocals by Irish singer-songwriter Sinéad O'Connor. It appeared on Massive Attack's fourth full-length album, 100th Window, was released as the first single on 24 February 2003; the single reached number 15 on the UK Singles Chart, number 8 in Poland, number 22 in Italy and number 46 in Ireland. "Special Cases" is the group's only song to chart in Canada, where it reached number 25 on the Canadian Singles Chart. Despite being one of the band's higher-charting singles, it did not appear on their 2006 singles compilation Collected. In addition to a radio edit of the original song, the single release contains a remix by Canadian electronica artist Akufen, as well as "I Against I", a song performed with Mos Def that appeared on the soundtrack of the 2002 film Blade II. 12" vinyl releases contained an additional remix of "Special Cases" by Vladislav Delay, credited as "Luomo" for this release. Two separate music videos were made for the song.

The Enhanced CD contains one of these, the other video is on a rare DVD release of the single. CD "Special Cases" – 3:46 "Special Cases" – 9:56 "I Against I" – 5:40 "Special Cases" – 5:0912" "Special Cases" – 9:56 "Special Cases" – 7:56DVD "Special Cases" – 5:09 "Special Cases" – 3:46 "Special Cases" – 9:56 "Special Cases" – 4:43 - Massive Attack Discography MASSIVEATTACK. IE song info entry on Special Cases Massive Attack - Special Cases on YouTube Lyrics of this song at MetroLyrics

Renato Teixeira

Renato Teixeira de Oliveira is a Brazilian singer-songwriter. A representative of sertanejo music and folk rock, linked to the caipira culture and dialect, Teixeira is the author of several hit songs including "Romaria", notably covered by Elis Regina in her eponymous 1977 album. Other hit songs by Teixeira were "Dadá Maria" and "Tocando em Frente" sung by Maria Bethânia. Teixeira won twice the Latin Grammy Award: in 2015 for Best Sertaneja Music Album, with Sérgio Reis, in 2016, with Sater. 1969 - Maranhão e Renato Teixeira 1971 - Álbum de Família 1973 - Paisagem 1977 - Romaria 1979 - Amora 1980 - Garapa 1981 - Uma Doce Canção 1982 - Um Brasileiro Errante 1984 - Azul 1985 - Terra Tão Querida 1986 - Renato Teixeira 1990 - Amizade Sincera 1992 - Ao Vivo em Tatuí 1995 - Aguaraterra 1996 - Sonhos Guaranis 1997 - Um Poeta e Um Violão 1998 - Ao Vivo no Rio 2000 - Alvorada Brasileira 2000 - O Novo Amanhecer 2002 - Cantoria Brasileira 2003 - Cirandas, Folias e Cantigas do Povo Brasileiro 2004 - Renato Teixeira e Rolando Boldrin 2007 - Ao Vivo No Auditório Ibirapuera 2010 - Amizade Sincera 2015 - Amizade Sincera II 2016 - AR