Why are there few or no clouds in the stratosphere? Answered

        The stratosphere (STRAT  uh sfihr) lies above the troposphere. It extends from about 11km to 50km above the earth. In the lower part of the stratosphere, the temperature does not change with height. But, in the upper part , temperature increases with height.  At 50km, the temperature is about 7o/c.          Air in the stratosphere is dry and thin, and there are very few or no clouds.

Question by Waren-Neutron   |  last reply


Bizarre weather clouds!

I just came across this article  that I had to share.  I thought it was interesting.  We are supposed to have severe weather conditions here.  We had a thunder storm in December last night.  Weird. http://news.yahoo.com/giant-tsunami-shape-clouds-roll-across-alabama-sky-192102289.html . Sunshiine

Topic by sunshiine   |  last reply


Cloud Tablet for Education

I am a teacher and have seen a great deal of technology in education. Unfortunately most of the time it is poorly executed. The latest trend is tablets. I see schools getting iPad and I have to wonder if there is not a cheaper solution. One where we make tablets affordable and easy to use. I am not saying that the iPad is not an excellent tool, but it is very expensive and most of the teachers I work with would be lost with how to use it effectively. I think that the platform is excellent and that the iPad is the best you can get in its area. I would like to explore how a cloud based tablet would work in education. I know that with cloud computing you can use hardware that costs less with no problem. I have looked into Joli OS as a possible operating system for such a tablet, but I am an English teacher. I need help. Someone or several someones who can help me wrap my brain around the best way to do this. I have no experience in programming. I am very familiar with computers, but the learning curve with what I want to do it steep. I am looking for a partner to explore this idea. Failing that I would like some advice.

Topic by ehudwill   |  last reply


How clouds act as an air pump to suck in air. Not how you think they do!

I have been thinking a long time about the biotic pump theory but I still don't understand it.  The math is too hard for me.   BUT it got me to thinking.   It is a point of major dispute in the meteorological world.   Does condensation cause low pressure?  2 russian nuclear physicists say yes,  almost everyone else says no!   So,  I thought and thought and thought.  Now I think I have a simple enough explanation And yes, they may not necessarily cause low pressure under the cloud (probably do)  but they definitely suck in air from elsewhere.  Imagine a fleet of huge doughnut shaped dirigible airships. They are sitting at 10,000 ft just floating there.   Now the commander tells everyone that they must now fly at 5000 ft.   So they turn on their propellers (in the hole in the doughnut) and drop down to 5000 ft by propelling air up  through the hole.   Now staying at 5000 ft is achieved by running the propellers at just fast enough.  So at 5000 ft they are pumping air from under the doughnuts to above them.   Now imagine a cumulus cloud.  Even though it is not fixed in size or shape and it does not have a propeller,  it is doing the exact same thing.  Air is being pumped up the middle and the clouds are sitting lower in the sky than they "should",  because they are sending that column of air up into the sky.   Here is my video to explain it visually.  https://www.youtube.com/watch?v=sPO8dWm_GIg

Topic by gaiatechnician   |  last reply


Windows 9x Clouds Remake

After searching and searching the internet, I could not find one single remake of Microsoft's signature wallpaper, "Clouds". So I set off to make one. The original picture was a 1024x768 grainy JPEG file. It was included in both Windows 95 and Windows 98 as selectable wallpapers, and it was the background found in the cover art of both releases of Windows 9x. My remake is a 1680x1050 PNG which I made fully from scratch, using Microsoft's Clouds.jpg as reference. Here on Instructables I have included my remake, as well as Microsoft's original. Deviant Art My Blog

Topic by Arbitror   |  last reply


feature request: tag cloud

Hi all, not sure if this is the right place to ask for this, but wouldn't a tag cloud or weighted category list (or whatever it's called) be a nice feature on Instructables as well? One could convert the already entered keywords into user generated tags and then allow reader to add new tags to entries etc. I think tag clouds are flexible than simple categories (although they don't replace them). Andreas

Topic by onde 


Wia - Cloud infrastructure for IoT

Hi All, This is my first post here. I would like to introduce you to my startup Wia (http://www.wia.io). We provide cloud infrastructure for Internet of Things devices.  We would love for you to signup and to start building applications around our platform. If you have any questions, ask away! Cheers, Conall

Topic by conalllaverty   |  last reply


Free personal cloud software? Answered

I've been searching around for free personal cloud software but I cant what i'm looking for. I have a server runnings windows 7 and would like to look for a simple application that allows me to access files from one of the drives. I have tried out Tornido but I find it has too many features and isnt really the software im looking for. I just want software where you can access files and download them from any pc either by an ip or program. Any comments will be greatly appreciated! Oscar

Question by oscarthompson   |  last reply


Mammatus Clouds Observed in Aurora Colorado

A thunderstorm rolled in at about 3:00 p.m. near my house in Aurora Colorado. I was amazed by the clouds that were present, and recognized some of them as "Mammatus Clouds." These clouds are fairly rare, I've only ever seen then twice. They are named "Mammatus Clouds" because they resemble a mammals breast. These clouds were not as distinctly mammatus as the previous ones that I had observed, but they are still mammatus clouds nontheless. I thought that these are really cool, and that someone might enjoy seeing them. Enjoy! 3:00-3:55 6-15-2012 Aurora, Colorado

Topic by freeza36   |  last reply


Cloud sync existing outlook emails?

Hi all, i want to essentially clone my outlook(2010 pro plus) into the cloud so i can access old emails whilst away from home. so emails (with folder structure), calendar & contacts. a free option would be appreciated.

Question by furby   |  last reply


Cloud gaming | Update 15/01

Hello everybody. I need help to carry out my ambitious project a gaming platform in the cloud. if you intereste please contact me. I need help for the development of hardware and software. You can request more information.Contact me

Topic by bellotero69   |  last reply


Cloud University: Open Source Education

I've been spending lots of time surfing the web recently trying to learn new things and to apply that knowledge to the various projects I have going at any given time. Lately I've been spending quite a bit of time scanning through various Linux forums and at Instructables.com. I was thinking about how the Internet has changed into something really amazing. It has become a medium of great synergy, where people can work together to accomplish things much greater than they could alone, or even in organizations of various sizes that have existed throughout human history. I am truly impressed by the synergy that has developed on the web, and wanted to develop some way of directing those energies towards a positive end. I was trying to think of something useful when I realized I shouldn't be working alone to develop this, it should be brainstormed by the Internet community. I realized that it would be hard to agree upon a direction to take, since everyone has their own concepts of what issues are most pressing, and since there is such strong disagreement about what can be done to solve those problems. I thought there would need to be a lot of dialogue, a sharing of information, and much deliberation before a plan could be reached. Then I realized that that should be the plan: education. If people could come together at a website laid out similarly to a social networking site and share information the oblique benefits would be enormous. I realize there are already sites like this. Wikipedia is fantastic. But there is only so much knowledge you can gain from reading information on a page. I was thinking this online learning institution could use tools employed by higher education already. It could have rooms where people could meet and have live chats, video, and shared presentations. Instructors could develop class pages in a simple GUI layout similar to Myspace with course information, forums, and feedback. We could even have tiered learning where an instructor requires verification that a student has sufficent skill in prerequisite classes before moving on. This could be a place where experts in various fields could come together to discuss their fields and continue to progress as well as place where curious minds could find help. Students in traditional universities could use it as a study guide to help in their course work. Of course, this would require that people with knowledge in their field donate their energies, but I don't think this is asking too much. If many people just donate a little bit of time it would have a huge impact. By working together the cost for any one person would be small, while the benefit to every single person would be enormous. I intend to pursue this vision, but I cannot do it alone. The obvious first step will be to start developing a website with a forum. I'll start working on this. If anyone has any suggestions or wants to help, please let me know.

Topic by Sam the Wizer   |  last reply


What is a data center?

Cloud computing 

Question by sanlee1990   |  last reply


Cathode Ray Tube and Cloud Chamber Combined - Possible?

Is it possible to build a cathode ray tube and observe the path of electrons in a combined (or linked) cloud chamber? I would want to apply a uniform magnetic field to the cloud chamber but not the CRT so that electrons travel in a straight line into the chamber and are subsequently deflected. Oh, and ideally using materials that were available in 1917! Thanks in advance.

Topic by boroman   |  last reply


Data updating on thingspeak (cloude) only once

 I am trying to update Thingspeak using Edison. It updates thingspeak but only at once. If I have to update again I have to run the code again. #include #include // ThingSpeak Settings char thingSpeakAddress[] = "api.thingspeak.com";  //TS String writeAPIKey = "**************";    //TS const int updateThingSpeakInterval = 20 * 1000;      // Time interval in milliseconds to update ThingSpeak (number of seconds * 1000 = interval) char ssid[] = "*********";     //  your network SSID (name) char pass[] = "*********";  // your network password int status = WL_IDLE_STATUS;     // the Wifi radio's status // initialize the library instance: WiFiClient client; String stringVal = ""; // Variable Setup long lastConnectionTime = 0; boolean lastConnected = false; int failedCounter = 0; int a; float tempC; int B=3975; float resistance; void setup() {   //Initialize serial and wait for port to open:   Serial.begin(115200);    while (!Serial) {     } //  check for the presence of the shield: // if (WiFi.status() == WL_NO_SHIELD) {   //   Serial.println("WiFi shield not present");     // don't continue:     //while(true); //} // attempt to connect to Wifi network:   while ( status != WL_CONNECTED) {     Serial.print("Attempting to connect to WPA SSID: ");     Serial.println(ssid);     // Connect to WPA/WPA2 network:       status = WiFi.begin(ssid, pass);     // wait 10 seconds for connection:     delay(10000);      }     // you're connected now, so print out the data:   Serial.println("You're connected to the network");   // printCurrentNet();   // printWifiData(); }   void loop() { a = analogRead(0); resistance=(float)(1023-a)*10000/a; tempC=1/(log(resistance/10000)/B+1/298.15)-273.15; // converts temp  to string      stringVal += String(int(tempC))+ "."+String(getDecimal(tempC)); //char buf[16]; //String strTemp = floatToString(16 , cel , 5); //Serial.println(strTemp); // Print Update Response to Serial Monitor   while (client.available())   {     char c = client.read();     Serial.print(c);   }   // Disconnect from ThingSpeak   if (!client.connected() && lastConnected )   {     Serial.println("...disconnected");     Serial.println();        client.stop();     }   // Update ThingSpeak   if(client.connected() && (millis() - lastConnectionTime > updateThingSpeakInterval))   {     updateThingSpeak("field1="+stringVal);      Serial.print( stringVal);          Serial.println("C");      delay(1000);      Serial.println();         }   lastConnected = client.connected(); } //function to extract decimal part of float long getDecimal(float val) { int intPart = int(val); long decPart = 100*(val-intPart); //I am multiplying by 100 assuming that the foat values will have a maximum of 3 decimal places                                    //Change to match the number of decimal places you need if(decPart>0)return(decPart);           //return the decimal part of float number if it is available else if(decPart<0)return((-1)*decPart); //if negative, multiply by -1 else if(decPart=0)return(00);           //return 0 if decimal part of float number is not available } void updateThingSpeak(String  stringVal) {   if (client.connect(thingSpeakAddress, 80))   {            client.print("POST /update HTTP/1.1\n");     client.print("Host: api.thingspeak.com\n");     client.print("Connection: close\n");     client.print("X-THINGSPEAKAPIKEY: "+writeAPIKey+"\n");     client.print("Content-Type: application/x-www-form-urlencoded\n");     client.print("Content-Length: ");     client.print( stringVal.length());     client.print("\n\n");     client.print( stringVal);        lastConnectionTime = millis();        if (client.connected())     {       Serial.println("Connecting to ThingSpeak...");       Serial.println();            failedCounter = 0;     }     else     {       failedCounter++;       Serial.println("Connection to ThingSpeak failed ("+String(failedCounter, DEC)+")");        Serial.println();     }      }   else   {     failedCounter++;        Serial.println("Connection to ThingSpeak Failed ("+String(failedCounter, DEC)+")");      Serial.println();        lastConnectionTime = millis();   } } after running this code I get this(image attached)

Question by ANINDYAB5   |  last reply


Easiest way to display tweets from different users without rewriting the code for every one separately

I am creating a web app that uses the tweet jquery plugin to display tweets of a specified twitter user.I have a list with some twitter users that I want to display their tweets, however it will be very difficult to rewrite the whole code for each one of the twitter users. Is there any way that I could only change the username when clicking on a specified link? Here is my code: jQTouch &beta;t @import "jqtouch/jqtouch.css";     @import "themes/artspot/theme.css"; @import "extensions/jqt.listIndex/jqt.listIndex.css";                                   Tweetstars                      StarList                                                                  # 3 Ring Wing Ding                         14 Carrot Rabbit 90 Day Wondering                     A B                     C D                     E F                     G H                     I J                     K L                     M mairiboo                     N O                     P Q                     R S                     T U                     V W                     X Y                     Z                                                                               $(function(){ $(".tweet").tweet({                         username: "mairiboo", avatar_size: 50,                         count: 20, loading_text: "loading tweets..."                       }).bind("loaded",function(){$(this).find("a").attr("target","_blank");}); });                                       

Question by arv_christos   |  last reply


Has anyone used mri data and converted it to autocad point cloud? Answered

Then used the point cloud to design and then print a surgical instrument for CNS surgery?

Question by CNSFIXER   |  last reply


How do you beat the boss on Dark Cloud, the Play Station 2 version?

I have been trying to beat this thing for a half of a year. So if anyone will help me please do cause I'm not giving up any time soon!

Question by ATL94   |  last reply


Hey, I am sure you know about TechRepublic's Live Webcast: What You Need To Know About The Cloud And Google Apps- May 17th....

It is advertised here:    TechRepublic... Cloud computing is barreling its way into mainstream IT as a growing number of organizations migrate from on-premise productivity applications to the online tools available through Google Apps. For those who have yet to weigh the pros and cons of a move to the cloud with Google Apps... Just an FYI. http://www.techrepublic.com/webcasts/live-webcast-what-you-need-to-know-about-the-cloud-and-google-apps/2875987?promo=099&trial;=25395542&tag;=nl.e099.em&tag;=nl.e099

Topic by Goodhart 


Auto-cloud backup mobile units for digital photography and film

This is just an idea I wanted to pitch It's entirely feasible more of a question of why.  There are hot spot devices that can get internet anywhere  You could theoretically build a module that plugs into a camera via USB and then the footage you take is automatically uploaded to a server somewhere (of your choice) 

Topic by jacob.cunningham.311   |  last reply


Any body have a way to create a smoke cloud?

I'm helping with Aladdin the musical and I got put on special effects and I need a way to make a Puff of smoke that the genie can disappear into, any ideas? Also fire cant be involved

Question by Emsaid   |  last reply



Legitimate botnet (zombie) farming?

If this doesn't exist yet, I have no doubt whatsoever that it's not far away. Is there a company doing legitimate zombie farming? ie, a cloud of computers running a local server which process data from a centralised distributor? People do it illegally, selling processing power from trojan infected machines, but is anyone doing it as a legal business? Imagine you could download a small application which sits in memory and draws off a certain percentage of your CPUs runtime, depending on the machine's usage. This processing power would form part of a cloud sourced supercomputer, with runtime sold to whoever. And say you were paid maybe a couple of dollars per 24 hours of processing, depending on CPU speed. Leaving a couple computers on 24 7 would add up to a not inconsiderable sum per month. You could salvage some old machines and leave them going in the basement. I've worked at animation studios, as an example, and for sure they would be keen to, rather than intermittently hire a room full of fast machines as a render farm, outsource it to a cloud. SETI did it. Like I say, if this isn't already being done, it will be soon.

Topic by SolarFlower_org   |  last reply



How can I make a mirrored mosaic outside without the mirror clouding?

I'm making gate post finials to look like disco balls (they won't revolve though, mores the pity ;-)   Is it possible to use mirrored glass outside without the silver backing clouding up and disintegrating?  I could use polished steel mosaics but I can't find any in the UK. Many thanks guys! Michelle

Question by flymissy   |  last reply


We do have a help group already

Here's our help group:https://www.instructables.com/group/help/best,cloude

Topic by lebowski   |  last reply


Cloud's Buster Sword From Final Fantasy 7 Out Of K'nex

Ok, I tried to make the Buster Sword out of Knex. It looks like a skinnier version of it, and the handle is crappy, but it looks kinda like the real thing. Just don't swing it. I will post pics later when I find my camera. But, how about some of you Final Fantasy 7 fans out the join a new group all about FF7 Knex things? It's called Knex Final Fantasy 7 Remember, ONLY Final Fantasy 7 things will be allowed to be posted in this group.

Topic by Knexfan 


What would happen if there was no Gravity?

How would it affect Animals and Plants? How would it affect Electricity? How would it affect Space and Universe? How would it affect Chemistry?

Question by Bluejay Clouds   |  last reply


Transit of Venus

This evening was the last chance to see a transit of Venus in our lifetimes.  The next one won't be for another 100 years. It was 100 degrees (~37 celcius) and we had storm clouds, but the clouds parted and I saw it!!!!  The hastily thrown together viewers worked and we knew it was Venus instead of dirt on the lens because the little black dot moved.  I took pictures of my set-up, but the macro feature on the camera was malfunctioning so no pictures of venus crossing the sun disc. Anyone else get to see it? 

Topic by CatTrampoline   |  last reply


Anti Gravity Idea...

OK I had this idea. I was online and thought up this idea for an anti gravity machine. This is it: use extremely static negatively charged materials for anti gravity. It could work the same way lightning clouds do. The base of the cloud is negatively charged and the ground become positively charged. Now if the material of the anti gravity "thing" is charged with static electricity, wouldn't it repel the ground? Now I am by far no expert in any of this...I just thought it up. What do you guys think?

Topic by bcarl6   |  last reply


berg little printer

Hi is anybody hacking these? i would like to get mine working offline,maybe connected to a camera . live slit scan or something like that..

Topic by crazyg 


Zinc+hydrochoric acid=?

I put a zinc coated nail into hydrochoric acid and the nail started to bubble.The bubbles came to the surface and when they popped a small cloud of some gas appeared and I was wondering what this gas was.I think to was hydrogen.

Topic by T.A.G.   |  last reply


Instructables Company Retreat

We all went out to Cloude's cabin in Bear Valley, CA, last weekend to hang out. Here's a video of the ski jump we made and subsequently fell off of, repeatedly.

Topic by nagutron   |  last reply


Not able to open drafts.

Hi Team,I am unable to open drafts. Clicking on profile pic, its shows drafts, but nothing gets showed up once I click on it.Please help resolving this.Regards,Vineet

Topic by IoT Cloud Guru   |  last reply


The Roaming Robot Round Two (Mt. Fuji)

I'm not sure if this shot works with the clouds, or if it would have looked better on a clear day. For more Fuji shots check out days 21 and 22 on my website.

Topic by Tetranitrate   |  last reply


how do i make a moldible smoke bomb?

It can be molded into any shape then you put a fuse in it and light it and it turns to a big cloud of smoke and you can make it from stuff at your local walmart

Question by airsofttunilor   |  last reply


disk saw + vacuum cleaner = less dust ?

When cutting bricks and concrete with disk saw there are clouds of dust. here is my failed attempt to reduce its amount using a vacuum cleaner instructable anyway ?

Topic by 11010010110   |  last reply


i want want programme to send sensed parameter to cloud by using ardiuno with interfacing esp8266 wifi model plz

Send data like temp. ,air ,humidity parameters which are sensed by sensor by using ardiuno interfacing with esp8266 wifi model 

Question by sachinpatil   |  last reply


Dry Ice Air Freshener

Michael Natkin writes a culinary blog Herbivoracious which includes hundreds of recipes for a vegetarian diet. This, however, is an experiment using dry ice to create beautiful clouds of smoke while filling your home with sweet scents.

Topic by Carleyy   |  last reply


PTAM 3D Mapping?

Hi, I've been looking around for a cheap 3D scanning system for fun and I was wondering if anyone has tried out PTAM or PTAMM for 3D  scanning?  Can these programs record point cloud datasets and pass that info to other computer applications (like the Blender point cloud skinner script)  to convert the points into 3D models?  This could be a way to make a 3D scanner for like $10 or $20 (or free if you already have a camera). Here are a couple links for the info: PTAM PTAMM http://ewokrampage.wordpress.com/projects-using-ptam/ Blender Script I was thinking to try it out in a week or two when I have some free time but it'd be fun to know if anyone has some experience with it! Thanks

Topic by greenyouse   |  last reply


How to make a cHAllenge? 0g Spacial Arch with clay concept

How do i sign in for a challenge? you know other websites were I could advertise this? like meetups events , other? I want to start a cloud for design concepts for 0 gravity Architecture - no straight walls

Topic by DIAGONALLIS 


Follow the bouncing ball!

An article in PhysicsWorld reports on a novel technique for measuring the acceleration due to gravity. The researches used a cloud of ultra-cold atoms and bounced them off a series of upward laser pulses. By measuring the timing of the bounces they could measure g with better than 1 per mil precision.

Topic by kelseymh   |  last reply


Kairah's Knex Train V01 [T.N.K.I.T. Entry]

Here is my entry for the T.N.K.I.T. A huge K'nex locomotive. Including whistles, seats, a passengers cabin, drivers cabin and a (moving) cloud of steam coming from the top! It uses the Trekker engine and rides on the old rollercoaster track.

Topic by Kairah   |  last reply


Application to collect data on behalf of the receipt, and holding a mobile phone

Collect data on behalf of the receipt, and waving the mobile phone, Application can be verified by the PC that enables you to choose a cloud in the pdf and save it I felt so useful if there is such an application, Do not make someone together? I do not have a Mac, but can not be produced, If design is good. Hi :*)

Topic by hnakai 


Arduino Xbee's only communicate with another Xbee connected to your computer? Answered

I guess I just haven't looked into this very far, but I thought Xbee's could communicate with a wireless router.  So basically, for an xbee to communicate with the cloud my computer needs to be on with another xbee plugged into it?  And if I want constant communication, my computer needs to be on 24/7?

Question by Spaceman Spiff   |  last reply


How to positively charge something? Answered

I was sitting here in the middle of a thunder storm and I had a thought, usually the clouds are negatively charged during a lightning strike, so, if you used a large cannon to blast a positive iron ball into the air, you may be able to get lightning to strike it, then collect it to see what the lightning did. So, you would you charge a cannon ball? 

Question by jj.inc   |  last reply


Where is a rainbow? Answered

As you may be aware, your reflection in a mirror appears to be behind the mirror. But, where is a rainbow? The Sun is over your shoulder, the cloud of raindrops is in front of you, but what is the apparent location of the rainbow? Is it between the observer and the water droplets, in the same location as the water droplets, or behind the water droplets (from the POV of the observer)? Or is it at some indefinably infinite location? I should know this... (a sketched-out ray diagram would be greatly appreciated)

Question by Kiteman   |  last reply


Sodium Glow

Sleep is not restful here. The clouds serve as reading lamps. The sodium vapor glows. Cloudless, moonless nights, I can see my feet. The darkness will not come. Night escapes we tired city dwellers. The sodium glows just as bright as before. The ancients knew what night was, They couldn't see their hands in front of their face. They went to sleep at dusk. We modern night owls fire up the street lights. The ugly sodium glow.

Topic by The Ideanator   |  last reply


Airsoft/Spudgun crossover: Anti-Personnel Explosive thingies

Its a PVC/ABS thing that works like a spud gun, but launches a powder cloud (and potentially BB's). It's remote-triggered, so it can be buried underground, and only the top has to be removed, so it can be permanent. It works in the same way as a spud gun. I'll try to get diagrams up tomorrow, and if I can build it, pictures and an instructable, of course.

Topic by Rotten194 


IoT server / gateway

Hello Instructables, Like a lot of people lately I'm experimenting with IoT and Home Automation. There are a lot of interesting projects going on, also a lot here at Instructables. But a thing that i run against is the fact of IoT Gateway/server software. On Google I found differed IoT gateways/servers that I wanted to share with you guys. If you have to contribute to my list, please do. All software's have there pros and cons, so more project the better.  - Thingspeak. This is a in the cloud site to witch you can send your sensor data and switch things - Exosite. Pretty similar to Thingspeak - IFTTT. This also a cloud site, with witch you can have your sensor data communicate with other services on the web like google, facebook, twitter - Openhab. Is a open home automation software that runs on the Raspberry Pi, it also has a android app. Unfortunately not that easy to configure. - EasyIoT. Is a pretty new server application, that looks great on the web and phone browser. Still new and in development.  Like I said all projects are have there pros and there cons. If somebody has to contribute to this list, please do. 

Topic by mfaber1   |  last reply