Epsilon
Epsilon (uppercase Ε, lowercase ε or lunate ϵ; Greek: Έψιλον) is the fifth letter of the Greek alphabet, corresponding phonetically to a close-mid front unrounded vowel /e/. In the system of Greek numerals it has the value five. It was derived from the Phoenician letter He 
. Letters that arose from epsilon include the Roman E, Ë and Ɛ, and Cyrillic Е, È, Ё, Є and Э.
The name of the letter was originally εἶ (Ancient Greek: [êː]), but the name was changed to ἒ ψιλόν (e psilon "simple e") in the Middle Ages to distinguish the letter from the digraph αι, a former diphthong that had come to be pronounced the same as epsilon.
In essence, the uppercase form of epsilon looks identical to Latin E. The lowercase version has two typographical variants, both inherited from medieval Greek handwriting. One, the most common in modern typography and inherited from medieval minuscule, looks like a reversed "3". The other, also known as lunate or uncial epsilon and inherited from earlier uncial writing, looks like a semicircle crossed by a horizontal bar. While in normal typography these are just alternative font variants, they may have different meanings as mathematical symbols. Computer systems therefore offer distinct encodings for them. In Unicode, the character U+03F5 "Greek lunate epsilon symbol" (ϵ) is provided specifically for the lunate form. In TeX, \epsilon (
) denotes the lunate form, while \varepsilon (
) denotes the inverted-3 form.
Epsilon (rocket)
The Epsilon rocket (イプシロンロケット, Ipushiron roketto) (formerly Advanced Solid Rocket) is a Japanese solid-fuel rocket designed to launch scientific satellites. It is a follow-on project to the larger and more expensive M-V rocket which was retired in 2006. The Japan Aerospace Exploration Agency (JAXA) began developing the Epsilon in 2007. It is designed to be capable of placing a 1.2 tonne payload into low Earth orbit.
Vehicle description
The development aim is to reduce costs compared to the US$70 million launch cost of an M-V. The Epsilon costs US$38 million (£23m) per launch, which is half the cost of its predecessor. Development expenditures by JAXA exceeded US$200 million.
To reduce the cost per launch the Epsilon uses the existing SRB-A3 as a solid rocket booster on the H-IIA rocket as its first stage. Existing M-V upper stages will be used for the second and third stages, with an optional fourth stage available for launches to higher orbits. The J-1 rocket, which was developed during the 1990s, but abandoned after just one launch, used a similar design concept, with an H-II booster and Mu-3S-II upper stages.
Wilderness (Wilderness album)
Wilderness is the debut album from the band Wilderness. It was recorded, mixed and mastered in May and June 2004 by Chad Clark and T.J. Lipple at Silver Sonya in Arlington, Virginia.
Track listing
References
Wilderness (miniseries)
Wilderness is a 1996 British mini-series directed by Ben Bolt. It is based on a novel of the same name by Dennis Danvers.
Cast
External links
Nick Jonas (album)
Nick Jonas is the eponymous second studio album by American singer Nick Jonas. It was released on November 10, 2014, by Island Records. The album features collaborations with Angel Haze, Demi Lovato and Mike Posner. The album received generally positive reviews from music critics and reached the top ten in the US, top twenty in the UK, Mexico and Canada whilst also reaching the top forty in Australia and New Zealand. It was re-released on November 20, 2015, under the title Nick Jonas X2, including three new tracks and four remixes.
Background and recording
In an interview with Rolling Stone Jonas stated that when Demi Lovato's The Neon Lights Tour gets off the ground, he will turn his attention towards his upcoming solo project. "Some of it is done and ready to be released," he said. "I've got a lot of things in the pipeline right now and I'm waiting to release some news about my music and my next steps. It isn't quite locked in yet, but I have started making some music and now it's all about lining up the pieces.
Podcasts:
