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The Wolfram|Alpha Community Forum has moved to the Wolfram Community. Sign up today for interesting discussions about Wolfram|Alpha and more!
We are pleased to announce the arrival of the new and improved Wolfram|Alpha Community site. As Wolfram|Alpha‘s vibrant community has grown, we’ve received helpful feedback, and it was clear that you needed a more expandable platform for sharing ideas and interacting.
The new Community site enables you to talk to each other and share relevant and interesting content. We created some starter groups based on topics we’ve already seen arise around Wolfram|Alpha. If you don’t see the group you are looking for, feel free to post it in the Community. We also created forums for general feedback, including ideas and suggestions, bugs, and how-to’s, so that you can propose and discuss changes and ideas.
In the new Wolfram|Alpha Community you can track individual posts more easily, create polls, send messages to other users, and see who else is online. You can also select views, such as unanswered posts, most active posts, or posts new since your last login. Members can also see a detailed User Panel that lets them view their posting statistics and share contact information with other members.
If you are already a member of the Community, you will receive an email containing a new password, which you can change upon logging in to the new Community site. If you want to become a member, simply go to the Community and select “register” to create a profile so you can begin posting.
We hope that the Wolfram|Alpha Community can continue to be the hub for discussion about Wolfram|Alpha. We would like the thank the active members who have made the Community a success, and invite you to join it if you haven’t already done so!
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The amount of activity that takes place here on planet Earth is at times unfathomable. But it’s the merest drop in the bucket in comparison to the boundless amounts of activity in our universe—Earth is merely one planet within the Milky Way Galaxy. Most deep-sky objects cannot be seen by the naked eye, but observers looking through a telescope are treated to views of colorful clusters of light and fuzzy clouds of gas in the sky. Here we’ll demonstrate ways Wolfram|Alpha can help you find deep-sky objects such as galaxies, nebulae, and star clusters—our universe has about 100 billion member galaxies, and with so many, it’s nice to have a place to start.
Querying “galaxies” in Wolfram|Alpha will produce a list of some of the brightest as seen from Earth. Let’s compare the properties of the galaxies NGC 7544 and the nearby M 83 (well, only 15.78 million light years away). Wolfram|Alpha provides information including their approximate distance from Earth, Hubble type, apparent magnitude, equatorial position, and position in the sky and visibility from your current location. Keep in mind that object distances may not be available for all objects; one of the great mysteries of astronomy is that distance is notoriously difficult to determine except in special cases. More »
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In an earlier post, we had some fun with Wolfram|Alpha’s popular collection of name data and its ability to compare given names’ popularity and demonstrate historical naming trends. Wolfram|Alpha can also compute statistics for surnames, rank them in order of commonality, and provide the approximate number of people living in the United States with any last name.
The data Wolfram|Alpha uses to compute surname statistics is largely drawn from name results from the U.S. Census. The United States is sometimes referred to as a “melting pot” because of the number of people who move to it from all corners of the world, bringing and melding their native cultures. Because of this, surnames found in the U.S. have origins from all over the world.
In this example below, we compare a set of random surnames. Take a guess at the most common surname in the U.S. Yes, it’s Smith. According to Wolfram|Alpha there are approximately 2.376 million Smiths living in the U.S.—that’s almost the population of Nevada.
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Time just named Wolfram|Alpha as one of the 50 best websites of 2009. We are delighted to receive this recognition in just our first 100 days. According to journalist Adam Fisher, “Clear out your bookmarks. You’re going to need the space for 50 offerings that are indispensable….”
Time’s view:
“Today’s search whiz kid is Stephen Wolfram, one of the biggest brains on the planet—and he’s got the new idea. Wolfram has developed a search engine that can actually understand your questions and try to figure out answers. It takes some doing to learn how to talk to Wolfram|Alpha, but it’s well worth it. If the sci-fi writers are right and the Internet does gain a consciousness of its own someday, we’ll all blame Wolfram.”“The 50 Best Websites of 2009,”
Time Magazine
As Stephen Wolfram wrote last week, we’ve been very busy since Wolfram|Alpha’s public launch. We’re constantly working toward our ultimate goal of making all of the world’s knowledge computable, and while we’ve got quite a way to go, we already have many trillion pieces of information available—something of value for everyone.
Thank you for your continued support and feedback. We hope you enjoy Wolfram|Alpha.
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On Monday, we kicked off our series on using Wolfram|Alpha for chemistry in honor of the American Chemical Society’s Fall 2009 National Meeting & Exposition, taking place in Washington, DC, USA this week. In this post, we begin to break down chemistry topics by taking a look Wolfram|Alpha’s collection of chemical element data. If you are attending the meeting, stop by the Wolfram Research booth, #2101, for a personal introduction to Wolfram|Alpha and the technology behind it.
The periodic table and its elements can be viewed as the foundation for building your knowledge and understanding of chemistry. Wolfram|Alpha defines a chemical element as any of the more than 100 known substances that cannot be separated into simpler substances and that singly or in combination constitute all matter. Currently, there are 118 commonly recognized elements, 92 of which occur naturally, and the others synthetically. The periodic table is organized in 18 columns (called groups) and 7 rows (called periods). Elements are arranged in the table based on their atomic weight.
In Wolfram|Alpha you can retrieve data for a chemical element in a number of ways, such as by name, symbol, atomic number, or a specific class, such as radioactive elements. In this example we query “hydrogen” and quickly learn from the basic elemental properties pod that it has an atomic number of one, which places it in the first position on the periodic table. We also learn its symbol, atomic weight, thermodynamic properties, material properties, electromagnetic properties, reactivity, atomic properties, abundances, nuclear properties, and identifiers. Click the image to explore more properties of hydrogen.
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This week the American Chemical Society (ACS) is holding its Fall 2009 National Meeting & Exposition in Washington, DC, USA. In honor of professional chemists, educators, and students, we’re celebrating chemistry this week. If you are attending the meeting and would like a personal introduction to Wolfram|Alpha or the technology behind it, drop by the Wolfram Research booth, #2101.
Wolfram|Alpha contains a wealth of chemistry data, and provides you rapid computations that ensure accuracy and save time. Wolfram|Alpha is also an incredible learning tool, especially for new chemistry students looking for ways to learn, understand, compare, and test their knowledge of chemistry basics. Many of the topic areas found on an introductory or advanced course syllabus can be explored in Wolfram|Alpha.
Need to compute how many moles are in 5 grams of iron? Query “how many moles are in 5 grams of iron?”, and Wolfram|Alpha quickly computes your input and returns a result, along with unit conversions.
Need some quick facts about carbon? With a quick query, Wolfram|Alpha returns its periodic table location, thermodynamic and material properties, and much more.
Here is an example of how you can save time by converting properties in Wolfram|Alpha:
With Wolfram|Alpha you can explore additional areas of basic chemistry such as computing a unit conversion, referencing chemical elements, ions, chemical compounds, thermodynamics, quantities of chemicals, and chemical solutions.
In Wednesday’s blog post we will break down chemistry topic areas and explore how Wolfram|Alpha can help you work through specific exercises, such as identifying and comparing classes of chemical elements, calculating thermodynamics, preparing solutions, converting units, and stoichiometry. Are you a professional who is using Wolfram|Alpha in your research today? Are you an instructor who has incorporated Wolfram|Alpha into your classroom, or a student who is using it to prepare for your chemistry courses? Share your experiences with other chemistry enthusiasts having this conversation on the Wolfram|Alpha Community site.
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Does this summer seem hotter than last year’s? Are you debating between a trip to Miami or Florence in the springtime? Or perhaps heading to Tokyo in November, and wondering how to pack? Wolfram|Alpha has a number of helpful tools to answer your weather questions, by retrieving current conditions, forecasts, and historical data from weather stations located all over the world.
For example, simply enter “weather” into the computation bar, and Wolfram|Alpha’s geoIP capabilities identify your approximate location and produce the latest records from your nearest weather station. The “Latest recorded weather” pod may feature information like the current temperature, relative humidity, wind speed, and conditions, such as clear, thunderstorms, or fog. Go ahead and click here to give it a try for your area.
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Whether you are an astronomy student or just interested in learning more about those points of light in our sky, Wolfram|Alpha contains star data that will help you get started and understand what you’re seeing up there. Wolfram|Alpha not only charts the stars from your location, but offers detailed information including their distance from Earth, color, size, and much more.
To figure out which stars are the most visible to you, simply enter “10 brightest stars“. The query’s results indicate that the brightest stars as seen from Earth are the Sun, Sirius, Canopus, Arcturus, Rigel Kentaurus A, Vega, Capella, Rigel, Procyon, and Betelgeuse. Pods show comparisons of the stars’ size, their equilateral locations, and their locations in the current sky (not necessarily the night sky—unless you specify a time/location, Wolfram|Alpha assumes the current time from your current location).
Are you interested in learning more about Mathematica—the powerful technology engine that makes Wolfram|Alpha possible, from its advanced computational algorithms to web deployment? We are pleased to announce that the International Mathematica User Conference 2009 will be held October 22–24 in Champaign, Illinois, USA. This is a great opportunity for anyone interested in learning more about Mathematica to meet and hear from Mathematica users from around the globe and all walks of life.
If you’d like to learn more about Mathematica and all it brings to Wolfram|Alpha, we’d love to see you at this year’s conference. Please visit the Wolfram Blog for more details.
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We have heard from many people who are interested in learning more about calculating their daily food intake in Wolfram|Alpha. If you have been following our posts on how to use Wolfram|Alpha to help achieve your nutritional and wellness goals, this will be easy as apple pie.
Our data curators have been busy working on over 7,000 food entities that are listed in the USDA National Nutrient Database for Standard Reference and other food databases. Currently, they’re adding additional brand-name and specialty food items. Once a food entity is placed into Wolfram|Alpha’s nutrition bank, rules and algorithms are applied to help categorize it by typical attributes (e.g. raw, boiled), units (e.g. cups, tablespoons), and unique serving forms (e.g. slices, pieces). As a result of these categorizations, when you enter a food item such as “strawberries” into the site’s computation bar, Wolfram|Alpha computes a breakdown of total calories, fat, cholesterol, sodium, carbohydrates, protein, and other particular nutrients based on standard serving sizes (units) and attributes.
Now let’s get started! For this example, a member of our team tracked her food intake yesterday to be computed for the world to see.
Breakfast: egg + bacon + strawberries
Lunch: turkey breast meat + 2 slices of whole-wheat bread + mustard + grapes
Snack: Snickers candy bar
Dinner: McDonald’s McChicken sandwich + McDonald’s French fries
As Wolfram|Alpha defaults to one unit serving, we only need to enter units if she consumed more than one serving.
“egg + bacon + strawberries + turkey breast meat + 2 slices whole-wheat bread + mustard + grapes + Snickers + McChicken + McDonald fries” More »
