42 votes
Accepted

What is the closest star to Earth other than the sun?

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  • 9,158
31 votes
Accepted

Speed of curated data calls in Version 10

There are system options available that should restore the old behavior for most of the currated data paclet: ...
27 votes

Can I build my own curated data function?

Update: Template Notebook I finally got around to finishing my curated data template notebook. You can see it here Currently it only supports single-type data paclets, but a template for multi-type ...
  • 45.7k
23 votes

How to ContourPlot a function of the coordinates on the Earth's surface on a map projection

You can use your ContourPlot, you just need to wrap coordinates with GeoPosition, note that you have to flip order. (if x is ...
  • 133k
21 votes
Accepted

How to get Company Logo or Image

apple = Interpreter["Company"]["Apple"]["Image"] Interpreter["Company"]["GE"]["Image"] Also works for the continent and ...
  • 34.6k
20 votes

Speed of curated data calls in Version 10

This is a long comment for Nick Lariviere's answer. You can use Trace to see how lengthy the entity and quantity logic is. Version 9: ...
  • 8,392
19 votes

Right Ascension and Declination in astronomical functions

Stars RA and Dec for stars can be fetched via ...
  • 3,337
17 votes
Accepted

How to change element color in Periodic Table?

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16 votes
Accepted

How to slice TimeSeries data?

One of the new operations on TimeSeries objects is TimeSeriesWindow. I think it does what you need. ...
  • 1,180
16 votes

How to get Company Logo or Image

Another variation: SemanticInterpretation["AAPL Logo"] This method is nice because you can do at once: ...
  • 32.5k
16 votes
Accepted

Chemical data of Lactic acid

I've struggled with How Mathematica expects the end-user to interact with knowledge databases for quite some time. While this solution is likely not universal, it has been reasonably successful for ...
16 votes
Accepted

Reproducing the XKCD "Consensus New Year" plot

Building off the other answer, CountryData has the data for the time zones for each country, as well as their population. So we can split each country ...
  • 5,463
15 votes
Accepted

How can I get curated data to be expressed consistently in SI units?

At the beginning of your notebook set the Metric system as default. $UnitSystem = "Metric" This works for me. If not try below suggestion Remember you are ...
15 votes

How to plot GDPs in this way?

This plot is an example of a "force layout". Note that the same thing is happening on two levels. The continents are fighting for space, as are the countries inside the continents. We need to figure ...
  • 69k
15 votes
Accepted

Why does WordList["KnownWords"] include so many non-words?

Apparently the list "KnownWords" is very inclusive; it has cardinal numbers, alphabet letters, and many obscure words and abbreviations. You may be more interested to use "CommonWords", ...
  • 64k
15 votes
Accepted

How to use an image as a number?

To minimize confusion I've reduced the code to one approach. ...
  • 133k
15 votes

ChemistryData — where is specific gravity?

Specific gravity is not on the property list of curated chemical properties, so you can't get it directly. However, here is a function that will compute it. ...
  • 106k
15 votes

Why will Wolfram CountryData not give population data after 2014 (e.g. for the US)?

CountryData does appear to be out of date, and that is a shame. Many of the XXXData functions now act as wrappers to call ...
  • 64k
15 votes
Accepted

COVID-19 Wolfram Data Repository Retrieval

It never updates for me properly. This is what I do: ...
  • 228k
14 votes
Accepted

How to keep downloaded curated data

There are two types of curated data in the Wolfram Language, the classic "paclet" functions like ChemicalData and the EntityValue...
14 votes

How do I plot my country map with weather data stations?

There is an example of what I think you are trying to do at the end of WeatherData help page, but its a little hard to read. However - here's what I think you want....
  • 2,291
14 votes
Accepted

How to get the expression of a special function?

reps = Entity["MathematicalFunction", "Gamma"][ "IntegralRepresentations"] reps[[2]][z] EDIT:...
  • 126k
13 votes

How to change element color in Periodic Table?

I know you said you didn't want to reinvent the wheel, but sometimes, it's fun to do so. The code below creates a palette with a Periodic Table and a few buttons to make useful tool tips. It shows ...
13 votes
Accepted

Flying to Australia

Use Interpreter without federal state or country. Works even for small german towns :) ...
  • 1,553
13 votes

What is the closest star to Earth other than the sun?

To clarify why it is that your command did not work, here is what your free-form input was translated to: ...
  • 488
13 votes
Accepted

All the food WolframAlpha knows about

Go to a new cell in a notebook and write "=", this will create an orange equality sign in the beginning of the cell. This means that you have entered the free form input mode. Write the name of a food ...
  • 69k
13 votes
Accepted

Coloring strands in braids

Dunno if it's any better than @Jason B.'s answer, but I think "BraidImageData" gives you the graphics objects used in the image, which you can play around with as ...
  • 1,247
12 votes

Flying to Australia

You could use the official ICAO abbreviation: Entity["Airport", "KLAX"] which makes sense because you will only be able to use officially named airports most of ...
12 votes
Accepted

Generate a list of symbols for the planets

ToExpression["\\[" <> # <> "]"] & /@ {"Mercury", "Venus", "Earth", "Mars", "Jupiter", "Saturn", "Uranus", "Neptune"} Gives (also corrected ...
  • 7,006
12 votes
Accepted

Why does Mathematica's date for the battle Agincourt differ from the US Navy's?

The date is different because Wolfram Alpha is wrong about when the Battle of Agincourt took place. Alpha is returning 25 October 1415 in the Gregorian calendar as the date of the battle, but the ...
  • 12.7k

Only top scored, non community-wiki answers of a minimum length are eligible