RE: [physicsnorthyork] Physics App

From: Hugh
Sent on: Monday, December 2, 2013 12:48 AM

There’s a free equivalent to Maple/Mathematica in a great package called Sage Math.

It’s a whole collection of math tools, loosely glued together with Python.

 

http://sagemath.org/

 

People called me paranoid until the latest NSA leaks came out, then they stopped laughing.

 

Wen Gmail came out, everybody knew it was just an April Fool’s joke.

Nobody would ever use something like email only not based on the Internet standards,

and *promising* to read all your mail and sell your life to other spammers.

Yet soon people forgot, or forgot to read all the complicated nested licence legal.

A lot of people use Gmail now, who don’t even know it’s funded by spying on your life, and selling it.

I don’t know a single person who has read the contract, and thinks she understood it, who still uses Gmail.

 

Alpha, last I checked, outright owns all your searches to do anything they wish with.

It will rarely be anything as involved as stealing your ideas.

Mostly it’s just collecting trends to make money from white papers and predicting stock market upswing and …

 

TANSTAAFL. Wolfram Alpha makes more $ of you than needed to support it, and turn a healthy profit.

Generally, anything ‘free’ or ‘unlimited’, just means you’re paying way over market price, on average.

You can still scam the system, at other persons’ expense, just like abusing medicare.

You just have to be a better, and faster, scammer than the company offering you stuff for free.

 

From: [address removed] [mailto:[address removed]] On Behalf Of Larry Smith
Sent: December[masked]:03 AM
To: [address removed]
Subject: Re: [physicsnorthyork] Physics App

 

It's been years since I looked into the "spying" aspect, so what I'm about to say may be totally obsolete.

But IIRC, the spying is mostly along the lines of "gee, a lot of people seem to be entering natural language queries about pendulums". Maybe we should enhance how we handle pendulums. Or maybe someone asked "what can you tell me about whatever". Hmmm, maybe we should provide some kind of narrowing down set of dialogs to help them ask more focused questions.

Beyond that, I dunno. Suppose you do ask it to do calculations for your new super-battery. Er, I mean enhanced airfoil. Or maybe this formula full of trig and exponential functions has to do with designing a new carburetor. In other words, who can tell what this formula is related to?

I suppose a human expert could take a look at a formula and tell, roughly, what branch of physics / chemistry / astronomy / mechanical engineering / etc a formula was related to. But to hire all these people just to look at the zillions of calculations people do each day, well, that hardly seems realistic. And data mining on formulas? While I suppose it might be possible in theory, it seems unlikely in practice.

Finally, unless you're a tinkerer in your garage, you probably already have, on your PC, a commercial copy of Mathematica (what Wolfram Alpha is based upon) / Waterloo Maple / a custom program written in C++ or the like / whatever.

Bottom line -- yeah, they do "spying". But my guess is that using that term shows an unwarranted amount of paranoia.

On 12/1/2013 6:47 PM, Hugh wrote:

Wolfram Alpha is really cool,

and gives you access to math tools that normally are very expensive.

 

Please take note: the ‘free’ version (App or normal) is paid for by spying.

Please carefully read and understand the license before deciding when you feel it’s safe to use.

(depending on what you’re willing to give up, whether you’re crunching anything private or proprietary, etc.)

Just like you would use care and give false credentials if you were using a ‘free’ Google service.

 

From: [address removed] [mailto:[address removed]] On Behalf Of Wayne McCracken
Sent: December[masked]:34 PM
To: [address removed]
Subject: Re: [physicsnorthyork] Physics App

 

Neat program Larry. I hadn't herd of it before. It is now installed on my phone.

 

Wayne

 

On Sun, Dec 1, 2013 at 3:04 PM, Larry Smith <[address removed]> wrote:

I really hate to rain on the parade here, but WolframAlpha does much (most?) of what this does (and much more), and it's free.

See the main page at http://www.wolframalpha.com/ (click the Examples link), and on the About page (www.wolframalpha.com/about.html), click the Take the Tour link in the upper right corner. Also the video and FAQ links near the bottom right.

Disclaimer -- Physics Tutor isn't a free app, so I didn't download and try it. I did look at (most of) the YouTube video.

To be honest, I wasn't blown away by it. For example, they show a definition for the Laws of relection, but they (and many (most? all?) others)  really need diagrams (and better yet, videos) showing what the pieces really are. For example, for those trying to learn, what's an "incident ray"? And what's this "normal" that it makes an angle with?

And pardon the nitpicking, but when he "solves" a wave equation, it's not solving, it's mere calculation. If (to take a trivial example) "x = a + b", and it prompts you for a and b, is this being "solved" for x? Not really, the way I normally use the word "solve". Much more powerful would be if you could write (again, taking a trivial example) "3 = 7 + x" and get the answer "-4" (which Wolfram Alpha would actually solve).

And Wolfram Alpha supports natural language input. Typing in "length of pendulum with period 2.7 seconds" gives a length of 181.1 cm (which equals 5.941 feet equals 5'11.29"), a frequency of[masked] Hertz, and a maximum speed of 146.4 cm/s (3.274 mph = 5.269 km/h).

And check out the examples for, among other things, 3D plotting, that you can dynamically rotate with your mouse.

Is there anything in the YouTube video that I liked? I suppose the "bicycle training wheels", prompting you for each parameter in complex formulae might be handy for rank beginners. But if you're playing with formulae this complex (other than a grotesqueness factor in the first day or three), then you should be able to plug in the values without the handholding.

Hey, if Physics Tutor helps you, then go for it. It's certainly priced right. But otherwise I can't overly recommend it, given the competition.




On 11/30/[masked]:51 PM, Arjun S Bharadwaj wrote:

Hello Physicists,

 

We've created an educational app called Physics Tutor - Full for people who are new to Physics. This app also helps advanced users to do the calculations faster. The app has the following features:

 

1. Equations Calculator for over 170 equations covering over 20+ topics in Physics.

2. 160+ Definitions covering all the topics.

3. Descriptions for all the Units and Lessons.

4. Wiki pages for all the Units and Lessons inside the app.

5. Equations List for all the formulae.

6. Clipboard support for all the Equations and Results.

7. Optimisation for Tablets.

8. Graphing tool to plot graphs of all the equations.

 

 

The latest version (Einstein) has included Dynamic Graphs that aids one to learn Physics Concepts. These graphs are generated by the student's input and are not static. The student can clearly see how a Physical Quantity varies with other Physical Quantity in real time.

 

Below is a link to the video of the App:

 

Below are some of the screenshots of the app:

 

Inline
                                                          image 2Inline
                                                          image 3Inline
                                                          image 4Inline
                                                          image 5Inline
                                                          image 6Inline
                                                          image 7Inline
                                                          image 8Inline
                                                          image 9Inline
                                                          image 11

 

 

This app is part of Google Play for Education. It can be downloaded at https://play.google.com/store/apps/details?id=com.edu.asb.highschoolphysicsfull from the Google Play.

 

Please try this app and provide your feedback on the same. Hope this app helps more people to get interested in Physics!

 

Regards,

Arjun S Bharadwaj

http://in.linkedin.com/in/arjunsbharadwaj





--
Please Note: If you hit "REPLY", your message will be sent to everyone on this mailing list ([address removed])
This message was sent by Arjun S Bharadwaj ([address removed]) from North York Physics Group.
To learn more about Arjun S Bharadwaj, visit his/her member profile
To report this message or block the sender, please click here
Set my mailing list to email me As they are sent | In one daily email | Don't send me mailing list messages

Meetup, POB 4668 #37895 NY NY USA 10163 | [address removed]






--
Please Note: If you hit "REPLY", your message will be sent to everyone on this mailing list ([address removed])

This message was sent by Larry Smith ([address removed]) from North York Physics Group.
To learn more about Larry Smith, visit his/her member profile


To report this message or block the sender, please click here
Set my mailing list to email me As they are sent | In one daily email | Don't send me mailing list messages

Meetup, POB 4668 #37895 NY NY USA 10163 | [address removed]



 

--
Twitter: @Wayne_McCracken





--
Please Note: If you hit "REPLY", your message will be sent to everyone on this mailing list ([address removed])
This message was sent by Wayne McCracken ([address removed]) from North York Physics Group.
To learn more about Wayne McCracken, visit his/her member profile
To report this message or block the sender, please click here
Set my mailing list to email me As they are sent | In one daily email | Don't send me mailing list messages

Meetup, POB 4668 #37895 NY NY USA 10163 | [address removed]


No virus found in this message.
Checked by AVG - www.avg.com
Version:[masked] / Virus Database: 3629/6876 - Release Date: 11/28/13

No virus found in this message.
Checked by AVG - www.avg.com
Version:[masked] / Virus Database: 3629/6882 - Release Date: 12/01/13





--
Please Note: If you hit "REPLY", your message will be sent to everyone on this mailing list ([address removed])
This message was sent by Hugh ([address removed]) from North York Physics Group.
To learn more about Hugh, visit his/her member profile
To report this message or block the sender, please click here
Set my mailing list to email me As they are sent | In one daily email | Don't send me mailing list messages

Meetup, POB 4668 #37895 NY NY USA 10163 | [address removed]






--
Please Note: If you hit "REPLY", your message will be sent to everyone on this mailing list ([address removed])
This message was sent by Larry Smith ([address removed]) from North York Physics Group.
To learn more about Larry Smith, visit his/her member profile
To report this message or block the sender, please click here
Set my mailing list to email me As they are sent | In one daily email | Don't send me mailing list messages

Meetup, POB 4668 #37895 NY NY USA 10163 | [address removed]


No virus found in this message.
Checked by AVG - www.avg.com
Version:[masked] / Virus Database: 3629/6876 - Release Date: 11/28/13

No virus found in this message.
Checked by AVG - www.avg.com
Version:[masked] / Virus Database: 3629/6883 - Release Date: 12/01/13

This email message originally included an attachment.

Our Sponsors

People in this
Meetup are also in:

Sign up

Meetup members, Log in

By clicking "Sign up" or "Sign up using Facebook", you confirm that you accept our Terms of Service & Privacy Policy