We present a method for determining mean light-weighted ages and abundances of Fe, Mg, C, N, and Ca, from medium resolution spectroscopy of unresolved stellar populations. The method, pioneered by Schiavon (2007), is implemented in a publicly avail...
Theoretical relative ages of galactic globular clusters have recently been challenged by a semi-empirical relation. It was used to point out that tested sets of isochrones were unable to reproduce the relation and yield internally inconsistent rela...
In this lesson, learners of all ages get an introductory experience with coding and computer science in a safe, supportive environment. This lesson works well for any students old enough to read (ages 6+).
I've been chatting with my friend about this for ages because, although he's not a fanfiction writer, he fell victim to what he calls 'social justice warriors.' We've been talking about this for ages,...
The cosmic "Dark Ages" is the period between the last scattering of the Cosmic Microwave Background (CMB) and the appearance of the first luminous sources, spanning redshifts $1100\gtrsim z\gtrsim 30$. The only way to observe this period is by examin...
silent film directed by D. W. Griffith. Subtitled as Love's Struggle Throughout the Ages and A Sun-Play of the Ages, the three-and-a-half-hour epic intercuts
The trajectory design for the Dark Ages Radio Explorer (DARE) mission con-cept involves launching the DARE spacecraft into a geosynchronous transfer orbit (GTO) as a secondary payload. From GTO, the spacecraft then transfers to a lunar orbit that is...
A concept for a new space-based cosmology mission called the Dark Ages Radio Explore (DARE) is presented in this paper. DARE's science objectives include (1) When did the first stars form? (2) When did the first accreting black holes form? (3) When d...
The Dark Ages Radio Experiment (DARE) seeks to study the cosmic Dark Ages approximately 80 to 420 million years after the Big Bang. Observations require truly quiet radio conditions, shielded from Sun and Earth electromagnetic (EM) emissions, on the...
Explore engaging computer science resources for students ages 11 and up. Access free courses, self-paced learning, AI activities, and career exploration tools.
Oct 13, 2011 · middle school: 1) a school in Britain for children between the ages of 8 and 12; 2) a school in the US for children between the ages of 11 and 14. high school: 1) a school in the US and Canada …
Beginning 48 years ago this March, four boys between the ages of 8 to 10 were murdered throughout New York City. It became apparent that a serial killer was responsible for the heinous attacks. In N...
Apr 29, 2021 · Which vaccines are recommended for preteens and teens ages 7 through 18? In addition to catching up on or getting additional doses of childhood vaccines, preteens and teens also need …
Jun 6, 2017 · Fact Sheet This is the 31st tobacco-related Surgeon General’s report issued since 1964. It describes the epidemic of tobacco use among youth ages 12 through 17 and young adults ages 18 …
Aug 7, 2015 · 211 votes, 137 comments. true So, I compiled a list with what I felt like are relevant character's ages in 282 AC, the start of Robert's Rebellion. I consider this a work in progress, so …
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Aug 7, 2015 · 211 votes, 137 comments. true So, I compiled a list with what I felt like are relevant character's ages in 282 AC, the start of Robert's Rebellion. I consider this a work in progress, so …
Aug 7, 2015 · 211 votes, 137 comments. true So, I compiled a list with what I felt like are relevant character's ages in 282 AC, the start of Robert's Rebellion. I consider this a work in progress, so …
Ages, metallicities, space velocities, and Galactic orbits of stars in the Solar neighbourhood are fundamental observational constraints on models of galactic disk evolution. We aim to consolidate the calibrations of uvby photometry into Te, [Fe/H]...
Apr 29, 2021 · Which vaccines are recommended for preteens and teens ages 7 through 18? In addition to catching up on or getting additional doses of childhood vaccines, preteens and teens also need …