Answer the question at the end by quoting:

Eratosthenes of Cyrene (; Greek: Eratosthenes o Kurenaios, IPA:
Eratosthenes was described by the Suda Lexicon as a Pentathlos (Pentathlos) which can be translated as "All-Rounder", for he was skilled in a variety of things: He was a true polymath. He was nicknamed Beta because he was great at many things and tried to get his hands on every bit of information but never achieved the highest rank in anything; Strabo accounts Eratosthenes as a mathematician among geographers and a geographer among mathematicians.  Eusebius of Caesarea in his Preparatio Evangelica includes a brief chapter of three sentences on celestial distances (Book XV, Chapter 53). He states simply that Eratosthenes found the distance to the Sun to be "stadion muriadas tetrakosias kai oktokismurias" (literally "of stadia myriads 400 and 80,000") and the distance to the Moon to be 780,000 stadia. The expression for the distance to the Sun has been translated either as 4,080,000 stadia (1903 translation by E. H. Gifford), or as 804,000,000 stadia (edition of Edouard des Places, dated 1974-1991). The meaning depends on whether Eusebius meant 400 myriad plus 80,000 or "400 and 80,000" myriad. With a stade of 185 m, 804,000,000 stadia is 149,000,000 km, approximately the distance from the Earth to the Sun.  Eratosthenes also calculated the Sun's diameter. According to Macrobious, Eratosthenes made the diameter of the Sun to be about 27 times that of the Earth. The actual figure is approximately 109 times.  During his time at the Library of Alexandria, Eratosthenes devised a calendar using his predictions about the ecliptic of the Earth. He calculated that there are 365 days in a year and that every fourth year there would be 366 days.  He was also very proud of his solution for Doubling the Cube. His motivation was that he wanted to produce catapults. Eratosthenes constructed a mechanical line drawing device to calculate the cube, called the mesolabio. He dedicated his solution to King Ptolemy, presenting a model in bronze with it a letter and an epigram. Archimedes was Eratosthenes' friend and he, too, worked on the war instrument with mathematics. Archimedes dedicated his book The Method to Eratosthenes, knowing his love for learning and mathematics.

What was Eratosthenes greatest achievement?

Eratosthenes also calculated the Sun's diameter. According to Macrobious, Eratosthenes made the diameter of the Sun to be about 27 times that of the Earth.



Answer the question at the end by quoting:

Najm was born and raised in Tallahassee, Florida. His stage name is short for "Tallahassee Pain", and was chosen because of the hardships he experienced while living there. Najm was brought up in a Muslim household, but he has expressed his lack of interest in the concept of religion. At just three years old he got his first taste of the music business when a friend of the family, gospel jazz artist/producer Ben Tankard, allowed him to spend time and "twist the knobs" at his recording studio.
In 2007, T-Pain began work on his third album with Rocco Valdes, Akon and Lil Wayne. The album was also his first under his Nappy Boy Entertainment.  T-Pain's third studio album, Thr33 Ringz, was released on November 11, 2008. The album sold 168,000 records in its first week, reaching number four on the Billboard 200. A mixtape, Pr33 Ringz, was released in early 2008 before the album.  The album was preceded by three singles. Its lead single, "Can't Believe It", featuring Lil Wayne, was released in July 2008. The single reached number seven on the Hot 100 and number two on the Hot R&B/Hip-Hop Songs chart. The album's second single, "Chopped 'N' Skrewed", featuring Ludacris, was released in September 2008. The single reached number twenty-seven on the Hot 100 and number three on the Hot R&B/Hip-Hop Songs chart. The third and final single from the album, "Freeze", featuring Chris Brown, was released in October 2008 and reached number thirty-eight on the Hot 100 and number thirty-nine on the Hot R&B/Hip-Hop Songs chart. Guest appearances on Thr33 Ringz included T.I., Lil Wayne, Ludacris, DJ Khaled, Ciara, Chris Brown and Kanye West among others. Pr33 Ringz was the introduction mixtape for the album.  In 2008, T-Pain continued to appear on numerous rap singles, such as "She Got It" by 2 Pistols, "Go Girl" by Ciara, "The Boss" by Rick Ross, "Cash Flow" by Ace Hood, "Shawty Get Loose" by Lil Mama, "One More Drink" by Ludacris, and "Go Hard" by DJ Khaled with Kanye West. T-Pain and Ludacris collaborated to perform "Chopped 'N' Skrewed" and "One More Drink" on American late-night television programs Jimmy Kimmel Live! on ABC in November 2008 and on NBC's Saturday Night Live in the same month. T-Pain appeared again on SNL in February 2009 (on the episode hosted by Bradley Cooper with musical guest TV on the Radio) in the SNL Digital Short. T-Pain also supported the album in 2009 with his Thr33 Ringz Tour, which included sold out shows across North America. T-Pain and rapper Lil Wayne formed the duo T-Wayne in 2008. The duo released a self-titled mixtape in late 2008; it charted on the Billboard 200 in January 2009. Their debut album was going to be released in 2009, but never was.  In 2009, T-Pain hosted the BET Awards afterparty and paid tribute to Michael Jackson in West Covina.

What was the name of the third album?
T-Pain's third studio album, Thr33 Ringz,