Tuesday 31 March 2015
Monday 30 March 2015
Sunday 29 March 2015
Saturday 28 March 2015
Friday 27 March 2015
Thursday 26 March 2015
Wednesday 25 March 2015
Tuesday 24 March 2015
Monday 23 March 2015
Sunday 22 March 2015
Saturday 21 March 2015
Friday 20 March 2015
Thursday 19 March 2015
Wednesday 18 March 2015
Tuesday 17 March 2015
Monday 16 March 2015
Sunday 15 March 2015
Saturday 14 March 2015
Friday 13 March 2015
Thursday 12 March 2015
Wednesday 11 March 2015
Tuesday 10 March 2015
Monday 9 March 2015
Sunday 8 March 2015
Octant History, San Diego Maritime Museum
"In the year 1700, Isaac Newton conceived the idea of measuring the altitude of a colonial body by bringing an image to the horizon by the use of mirrors. Thirty years later, John Halley in England and Thomas Godfrey in America independently invented octants using this principle."
Saturday 7 March 2015
Friday 6 March 2015
Thursday 5 March 2015
Wednesday 4 March 2015
Changing LaTeX Margins
\usepackage[
top = 2.75cm,
bottom = 2.50cm,
left = 3.00cm,
right = 2.50cm]{geometry}
top = 2.75cm,
bottom = 2.50cm,
left = 3.00cm,
right = 2.50cm]{geometry}
source: http://www.latex-community.org/forum/viewtopic.php?f=47&t=9531&p=36543
Tuesday 3 March 2015
LaTeX: Scale Image to Page Width
\includegraphics[width=\columnwidth]{path-to-file}
\textwidth also works for single columns.
\textwidth also works for single columns.
source: http://tex.stackexchange.com/questions/39147/scale-image-to-page-width
Monday 2 March 2015
Sunrise+Sunset Observation
Recently, the days have been getting longer. Sunrise comes earlier and sunset occurs later. Looking at the recent [rapid noticeable] elongation of the day in March, and how the temperature is rising rapidly, we can guess that we sit on the smaller-sector side of our orbital ellipse.
From Kepler's second law, "A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time."
Verifying on a seasonal orbit diagram for March, we are indeed closer to the periapsis than the apoapsis.
From Kepler's second law, "A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time."
Verifying on a seasonal orbit diagram for March, we are indeed closer to the periapsis than the apoapsis.
Working backwards from experimental data may have resulted in deducing an elliptical orbit, eventually leading to how these laws were established.
source: http://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Seasons1.svg/2000px-Seasons1.svg.png
http://en.wikipedia.org/wiki/Kepler%27s_laws_of_planetary_motion
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