Clipmarks | destino's clips

3 Axis CNC Milling Machine

Wed, 08 Apr 2009 17:18:28 GMT

clipped by: destino

Here is a way to make a computer controlled milling machine. That puts the real power of a computer control machining into the hands of the average human. Small enough to set on the desk but scalable to any size. As inexpensive as possible without sacraficing accuracy (too much). All most all the parts can be purchased in local retail stores. And above all CHEAP you can be up and running for well under $200. With it you can do 2 Dimentional engraving and PC board etching and 3D milling and modeling in Foam, Wood, Plastic and other soft materials.

Also try watching the YouTube movie at the end (the last frame).

New information on the Motor Driver Circuit is (HERE).

Tags: cnc, diy, make, instructables

Restart Sound Linux

Thu, 26 Mar 2009 23:06:16 GMT

clipped by: destino

Clip Source: ubuntuforums.org

I've always wondered this--you should only have to restart linux if you change the kernel!--and I think I found out how:

do:

sudo /etc/init.d/alsa-utils restart

But sometimes this won't work if something is really holding on to the sound so do:

name@comp:~$ lsof | grep pcm
sh 5079 name 70u CHR 116,6 13639 /dev/snd/pcmC0D0p

esd 5080 name 70u CHR 116,6 13639 /dev/snd/pcmC0D0p

to find the process id and then kill it and restart:

name@comp:~$ kill -9 5079
name@comp:~$ kill -9 5080
name@comp:~$ lsof | grep pcm

sudo /etc/init.d/alsa-utils restart

and hopefully that will work.

I tried all of the above and nothing worked till I did
/etc/init.d/alsa-utils reset
One more thing to try.

Tags: linux, sound, tips, troubleshooting

Simple Guide to Beating Procrastination

Wed, 25 Mar 2009 17:21:07 GMT

clipped by: destino

Clip Source: zenhabits.net

1. First make sure you really, really, really want to do it. Seriously - don’t skip this step.
2. Keep things simple - don’t mess with tools, formatting, anything, just start.
3. Make it the first thing you do today, before checking email or anything else.
4. Clear away everything that stands in the way of doing. Including turning off the Internet.
5. Just get started. Overcome the initial barrier by diving in.
6. Tell yourself you’re just going to do 10 minutes.
7. Put something you dread more at the top of your to-do list — you’ll put off doing that by doing the other things on your list. (Structured procrastination.)
8. Find something about it that excites you.
9. Forget about perfection. Just start doing it, and fix it later.
10. If you keep procrastinating, re-evaluate whether you really want to do it. Consider not doing it, or putting it on the backburner.

Tags: productivity, motivation, procrastination

5 Minute Workout to Keep You In Shape in Any Space

Mon, 23 Mar 2009 17:24:34 GMT

clipped by: destino

Clip Source: lifehacker.com

Mike Rowe from Discovery Channel's Dirty Jobs demonstrates how to get a great workout in any space by performing several sets of descending repetitions of the classic "burpee."

[Video]

Tags: workout, exercise, fitness, health, tips

Happiness is Contagious

Wed, 18 Mar 2009 19:06:54 GMT

clipped by: destino

Clip Source: articles.latimes.com

Knowing someone who is happy makes you 15.3% more likely to be happy yourself, the study found. A happy friend of a friend increases your odds of happiness by 9.8%, and even your neighbor's sister's friend can give you a 5.6% boost.

"Your emotional state depends not just on actions and choices that you make, but also on actions and choices of other people, many of which you don't even know," said Dr. Nicholas A. Christakis, a physician and medical sociologist at Harvard who co-wrote the study.

Christakis and UCSD political scientist James H. Fowler examined the relationships of nearly 5,000 people who were tracked for decades as part of the landmark Framingham Heart Study.

They discovered that happy people in close geographic proximity were most effective in spreading their good cheer. They also found the happiest people were at the center of large social networks.

In many regards, they concluded, happiness is like a contagious disease.

Tags: brain, science, happiness, information, research

Programming Music

Fri, 13 Mar 2009 20:25:19 GMT

clipped by: destino

Clip Source: www.reddit.com

Secret Sound Service (ambient)

Soma FM (ambient, and more)

Clip Source: www.reddit.com

Groove Salad!

Clip Source: www.reddit.com

Dani Casarano

carbon based lifeforms

monolake

nightmares on wax

kiln

Clip Source: www.reddit.com

8tracks (lots of everything!)

Clip Source: www.reddit.com

NoLife Radio (8-bit and video games)

Clip Source: www.reddit.com

boards of canada

Clip Source: www.reddit.com

di.fm Lots of good trance channels, and have sky.fm if you'd rather have less of a beat going. All streamable, and decently low cost for what you get.

Clip Source: www.reddit.com

Ms. John Soda

Amethystium

Jens Gad

Frou Frou

Telepopmusik

Ulrich Schnauss

Clip Source: www.reddit.com

My favorite bands to listen to are 65daysofstatic and Explosions in the Sky.

Clip Source: www.reddit.com

slayradio.org ... it has hardly any vocals.

Clip Source: www.reddit.com

Pandora's Morphine channel

Clip Source: www.reddit.com

Orbital - In Sides (2 Disc set, US release) Probably the only CD I never, ever get tired of hearing

Clip Source: www.reddit.com

I've recently gotten a liking for Golden City Factory (trance).

Tags: programming, music, radio

Spin Batteries

Fri, 13 Mar 2009 17:15:42 GMT

clipped by: destino
clipper's remarks: An amazing new technology.

Clip Source: www.eurekalert.org

The device created by University of Miami Physicist Stewart E. Barnes, of the College of Arts and Sciences and his collaborators can store energy in magnets rather than through chemical reactions. Like a winding up toy car, the spin battery is "wound up" by applying a large magnetic field --no chemistry involved. The device is potentially better than anything found so far, said Barnes.

"We had anticipated the effect, but the device produced a voltage over a hundred times too big and for tens of minutes, rather than for milliseconds as we had expected," Barnes said. "That this was counterintuitive is what lead to our theoretical understanding of what was really going on."

Tags: battery, energy, magnetics, physics, research

Basic Yubnub Commands

Thu, 12 Mar 2009 20:56:26 GMT

clipped by: destino

Clip Source: www.yubnub.org

Google	g	Google News	gnews	Yahoo!	y
Wikipedia	wp	Technorati	tec	Amazon	am
CNN	cnn	Weather for zip code	weather	eBay	ebay
AllMusic.com	allmusic	del.icio.us tag	deli	Flickr	flk
ESPN	espn	Yahoo! Stock Quote	stock	Dictionary (Answers.com)	a

Tags: commands, yubnub

How to Replace the Battery in Logitech MX1000 Mouse

Thu, 12 Mar 2009 18:48:37 GMT

clipped by: destino

Clip Source: forums.logitech.com

The screws are under the back 2 feet and under the label. The label you can just feel for the holes and press thru with a screw driver. For the 2 feet, you can either peel them off (and buy replacements or re-glue the old ones back on), or just press the screw driver thru the center of the feet.

From what I've read, a KODAK KLIC-5001 or compatible makes a good replacement if you don't mind voiding the warranty.

Tags: mouse, instructions, battery, replacement

14 Rules for Faster Loading Web Sites

Thu, 12 Mar 2009 18:40:00 GMT

clipped by: destino

Clip Source: stevesouders.com

Rule 1 - Make Fewer HTTP Requests

Rule 2 - Use a Content Delivery Network

Rule 3 - Add an Expires Header

Rule 4 - Gzip Components

Rule 5 - Put Stylesheets at the Top

Rule 6 - Put Scripts at the Bottom

Rule 7 - Avoid CSS Expressions

Rule 8 - Make JavaScript and CSS External

Rule 9 - Reduce DNS Lookups

Rule 10 - Minify JavaScript

Rule 11 - Avoid Redirects

Rule 12 - Remove Duplicate Scripts

Rule 13 - Configure ETags

Rule 14 - Make AJAX Cacheable

Tags: web development, performance, tips, tricks, speed

Mapping Music

Thu, 18 Jan 2007 18:36:13 GMT

clipped by: destino
clipper's remarks: A very cool way of mapping music.

Clip Source: www.harvardmagazine.com

Tymoczko (pronounced tim-OSS-ko), who spent this past academic year as a composer in residence at the Radcliffe Institute for Advanced Study, has developed a way to represent music spatially. Using non-Euclidean geometry and a complex figure, borrowed from string theory, called an orbifold (which can have from two to an infinite number of dimensions, depending on the number of notes being played at once), Tymoczko’s system shows how chords that are generally pleasing to the ear appear in locations close to one another, clustered close to the orbifold’s center. Sounds that the ear identifies as dissonant appear as outliers, closer to the edges.

The system “allows you to translate these half-formed intuitive understandings into very precise, clear language,” says Tymoczko, an assistant professor of music at Princeton. “Personally, I find that incredibly cool.” So, apparently, did Science, which recently published his mathematically based exposition—the only music-theory paper the journal has accepted in its 127-year history.

For a map that would represent music accurately, Tymoczko needed a shape folded once to acknowledge the circular nature of octaves, and again to reflect the existence of two different combinations that produce the same result—for example, A plus C sounds the same as C plus A. “On a piano, there are many, many different ways of playing the same chord,” Tymoczko says. “I’ve collapsed all the different ways of playing a chord into a single point on the map.”

Tags: music, science, technology

Getting Your Site Noticed by Search Engines

Thu, 18 Jan 2007 17:24:15 GMT

clipped by: destino
clipper's remarks: A concise overview of search engine optimization.

Clip Source: www.usatoday.com

Winfield has three top tips for Balsam: Her site needs to be linked to from other quality websites. She should have a clear website title. And she needs descriptive copy that includes the search terms (called keywords) that articulate how she wants to be discovered by search engines such as Google, Yahoo and MSN, he says.

"Keywords direct the search engines to how to find you," Winfield says. "And links are the holy grail. If a lot of sites link to you, that means you have authority and should be placed higher than others."

The first step for many businesses is realizing exactly what their keywords should be. A house painter, for example, shouldn't use "house painting" as a keyword, because it's so broad. Instead, the painter might drill down to the more specific "interior house painting" or "exterior house painting."

In designing a website, Winfield says, the most important keyword for a business should be on the site's title page (visible along the top of Internet Explorer or other web browsers). This is the first thing Google looks for when crawling the Web.

Getting one great link from a top, heavily trafficked site (like www.engadget.com for a technology item) is worth more than 25 mentions on the many directory sites that are all over the Web, Winfield says.

Tags: technology, internet, search engine, optimization`

The Most Amazing Formula

Thu, 18 Jan 2007 17:20:44 GMT

clipped by: destino
clipper's remarks: Mindblowing!

Clip Source: mathworld.wolfram.com

J. Tupper concocted the amazing formula

where is the floor function and is the mod function, which, when graphed over and with

gives the self-referential "plot" illustrated above.

Tags: science, math, mathematics, functions, formula

How to Get People to Like You

Mon, 15 Jan 2007 19:23:50 GMT

clipped by: kankamuso
clipper's remarks: A little bit more detailed than the usual "just be yourself", heh.

Clip Source: mysticeye.info

Learn to remember names. A name is very important to someone. If you don’t take the time to learn someone’s name, it indicates that you’re not interested in him or her. When someone remembers your name, it gives you the feeling that you are interesting or important.

Be easy going and natural. When you are stiff, reserved or unresponsive, you unconsciously build up a barrier. But when you are easy going and natural it is easy for people to like you.

Be interesting. Have something to talk about that people find interesting or stimulating. This way people want to be with you.

Don’t have a big ego. If you give the impression that you know it all, that you are superior, you make it hard for people to like you. Be normally humble.

Do some self-study and get rid of negative attitudes. People can consciously or unconsciously pick those up and they might find it irritable to be around you.

Always look for the positive qualities in a person. Getting people to like you is merely the other side of liking them.

Try to build up someone’s ego. Make compliments. Congratulate upon someone’s achievement, or express sympathy when they are in sorrow or if they feel disappointed. The ego is a sacred thing; every human being has the desire to feel important. When you deflate someone’s ego, you are wounding him deep inside.

Give strength to people, support them. Help them to be stronger and they will give you affection.

Whether you like to admit it or not, we want people to like us. If someone tells you that he does not really care if people like him or not, he simply is not being honest. The longing to be liked is one of our deepest desires. We want to be popular, we want people to speak nothing but good of us and we want to have affection of the people around us. It is in our human nature.

Tags: how to, lists, psychology, relationships

Quantum Mechanics the Easy Way

Mon, 15 Jan 2007 00:48:42 GMT

clipped by: destino
clipper's remarks: A great overview of quantum mechanics from.

Clip Source: www.scottaaronson.com

There are two ways to teach quantum mechanics. The first way -- which for most physicists today is still the only way -- follows the historical order in which the ideas were discovered. So, you start with classical mechanics and electrodynamics, solving lots of grueling differential equations at every step. Then you learn about the "blackbody paradox" and various strange experimental results, and the great crisis these things posed for physics. Next you learn a complicated patchwork of ideas that physicists invented between 1900 and 1926 to try to make the crisis go away. Then, if you're lucky, after years of study you finally get around to the central conceptual point: that nature is described not by probabilities (which are always nonnegative), but by numbers called amplitudes that can be positive, negative, or even complex.

As a direct result of this "QWERTY" approach to explaining quantum mechanics - which you can see reflected in almost every popular book and article, down to the present -- the subject acquired an undeserved reputation for being hard. Educated people memorized the slogans -- "light is both a wave and a particle," "the cat is neither dead nor alive until you look," "you can ask about the position or the momentum, but not both," "one particle instantly learns the spin of the other through spooky action-at-a-distance," etc. -- and also learned that they shouldn't even try to understand such things without years of painstaking work.

The second way to teach quantum mechanics leaves a blow-by-blow account of its discovery to the historians, and instead starts directly from the conceptual core -- namely, a certain generalization of probability theory to allow minus signs. Once you know what the theory is actually about, you can then sprinkle in physics to taste, and calculate the spectrum of whatever atom you want. This second approach is the one I'll be following here.

Tags: quantum mechanics, physics, science

Clipmarks | destino's clips

3 Axis CNC Milling Machine

Restart Sound Linux

Simple Guide to Beating Procrastination

5 Minute Workout to Keep You In Shape in Any Space

Happiness is Contagious

Programming Music

Spin Batteries

Basic Yubnub Commands

How to Replace the Battery in Logitech MX1000 Mouse

14 Rules for Faster Loading Web Sites

Mapping Music

Getting Your Site Noticed by Search Engines

The Most Amazing Formula

How to Get People to Like You

Quantum Mechanics the *Easy* Way

Quantum Mechanics the Easy Way