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[1802.04718] The random walk of cars and their collision probabilities with planets
On February 6th, 2018 SpaceX launched a Tesla Roadster on a Mars crossing orbit. We perform N-body simulations to determine the fate of the object over the next several million years, under the relevant perturbations acting on the orbit. The orbital evolution is initially dominated by close encounters with the Earth. The first close encounter with the Earth will occur in 2091. The repeated encounters lead to a random walk that eventually causes close encounters with other terrestrial planets and the Sun. Long-term integrations become highly sensitive to the initial conditions after several such close encounters. By running a large ensemble of simulations with slightly perturbed initial conditions, we estimate the probability of a collision with Earth and Venus over the next one million years to be 6% and 2.5%, respectively. We estimate the dynamical lifetime of the Tesla to be a few tens of millions of years.Sat 24 Feb 2018 02:21:41 PM +08 - permalink -- https://arxiv.org/abs/1802.04718
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BabelMap Online (Unicode 10.0)
Verz handy online version of BabelMap.Tue 24 Oct 2017 06:07:45 PM +08 - permalink -- http://www.babelstone.co.uk/Unicode/babelmap.html
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A Dramatic Tour through Python’s Data Visualization Landscape (including ggplot and Altair) – Regress to Impress
Overview of 5 options when it comes to statistical data visualisation in Python:Mon 27 Feb 2017 08:05:47 AM +08 - permalink -
- matplotlib
- pandas
- seaborn
- ggplot
- altair- https://dansaber.wordpress.com/2016/10/02/a-dramatic-tour-through-pythons-data-visualization-landscape-including-ggplot-and-altair/
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To Build a Better Ballot
An interactive guide to alternative voting systems.Mon 12 Dec 2016 08:22:01 PM +08 - permalink -- http://ncase.me/ballot/
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Step Charts in Microsoft Excel
Step Chart Approach 1: XY Chart with Error BarsTue 20 Sep 2016 06:24:08 PM +08 - permalink -
One way to get horizontal and vertical lines from data points is with error bars. You don't need to add points to get the additional segments. However, you do need to add formulas to compute custom error bar values, and you need to assign error bars to the series. Because horizontal (X) error bars are needed, the chart must be an XY chart with its inferior date scale axis, not a Line chart.
Step Chart Approach 2: Line Chart with Repeated Ranges
Until recently I considered only two techniques for building step charts: the XY plus error bars approach described above, and manually (i.e., tediously) inserting extra data into the worksheet to allow for one point per corner. But in February 2006, Michel Gerday of Belgium described the following technique in the Microsoft Excel Charting newsgroup, and his technique automatically adds the extra data to a line chart.- http://peltiertech.com/Excel/ChartsHowTo/StepChart.html
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Free Automated Malware Analysis Service - powered by VxStream Sandbox
via sebsauvageMon 29 Aug 2016 09:58:49 PM +08 - permalink -
Le système tourne dans une machine virtuelle et évalue le comportement de l'exécutable, regarde les accès réseau, analyse d'eventuelles entropies trop élevée dans certaines parties du fichier (démontrant la présence d'un chiffrement ou d'une compression), etc.- https://www.hybrid-analysis.com/
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tabulate 0.7.5 : Python Package Index
Pretty-print tabular data in Python, a library and a command-line utility.Wed 17 Aug 2016 11:56:52 PM +08 - permalink -- https://pypi.python.org/pypi/tabulate
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Working with the Chaos Monkey
The Chaos Monkey’s job is to randomly kill instances and services within our architectureTue 26 Jul 2016 12:37:30 AM +08 - permalink -- https://blog.codinghorror.com/working-with-the-chaos-monkey/
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How To Easily Print A Large Image To Multiple Pages In Windows | Scottie’s Tech.Info
This tip is really great:Thu 03 Mar 2016 10:53:58 AM +08 - permalink -
"You’re going to find this hard to believe, but that built-in Windows app that will split-print an image for you is none other than Microsoft’s much-maligned Paint application!!"
1. Open the image you’d like to print in Paint
2. Select: Print -> Page Setup (Vista and 7), or File -> Page Setup (in XP)
3. Under Scaling, select Fit to and change the setting to something like “2 by 2 page(s)”
4. Click OK
5. Print the image from Paint, and make sure to select “All Pages”- http://scottiestech.info/2009/08/08/how-to-easily-print-a-large-image-to-multiple-pages-in-windows/
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Interactive website to discover the Garden of Earthly Delights from Jheronimus Bosch
The interactive documentary Jheronimus Bosch, the Garden of Earthly Delights provides an in-depth tour though The Garden of Earthly Delights. In a web interface the visitor will be taken on an audio-visual journey, including sound, music, video and images to enrich the storytelling.Wed 10 Feb 2016 11:33:09 PM +08 - permalink -- https://tuinderlusten-jheronimusbosch.ntr.nl/en
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NirSoft - freeware utilities: password recovery, system utilities, desktop utilities
NirSoft web site provides a unique collection of small and useful freeware utilities, all of them developed by Nir Sofer.Sat 23 Jan 2016 01:29:16 PM +08 - permalink -- http://www.nirsoft.net/
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Jupyter Notebook Viewer - Probability, Paradox, and the Reasonable Person Principle
In this notebook, we cover the basics of probability theory, and show how to implement the theory in Python. (You should have a little background in probability and Python.) Then we show how to solve some particularly perplexing paradoxical probability problems.Sat 23 Jan 2016 01:17:09 PM +08 - permalink -- http://nbviewer.jupyter.org/url/norvig.com/ipython/Probability.ipynb
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Awesome Search
Makes you find what you want in awesome lists more quickly.Sat 23 Jan 2016 01:08:33 PM +08 - permalink -
Access and search every awesome repo collected in sindresorhus/awesome in one page without pain.- https://awesomelists.top/
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Python module sarge - “Subprocess Allegedly Rewards Good Encapsulation”
If you want to interact with external programs from your Python applications, Sarge is a library which is intended to make your life easier than using the subprocess module in Python’s standard library.Fri 22 Jan 2016 11:06:45 PM +08 - permalink -- https://sarge.readthedocs.org/en/latest/index.html
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Spherical Delaunay triangulation, convex hull, Voronoi diagram
An interactive online tool to draw Voronoi diagram on a google mapTue 19 Jan 2016 01:13:30 PM +08 - permalink -- http://lpetrich.org/Science/GeometryDemo/GeometryDemo_GMap.html
