What horse power 24v DC motor do i need to run 5 kw permanent magnetic generator at 400 RPM? if I dont want to use wind turbine to run it.
Posted by azizmak 1 year ago
On Sunday, I ran the Oakland Marathon, finishing in 3:54:29, and placing 215th out of 945 runners. I know it's cliche, but I read Born to Run and got inspired me to run a marathon. It's the best book I've read in years: the characters (all real people!) are fascinating, the setting and story are fantastic, and it just made me want to get out and go. Halfway through the book, I decided to run a few miles to the grocery store in the rain just to run out back, not because I needed anything. Prior to reading Born to Run, I had been running a 2-3 miles twice a week to vary my preferred morning exercise routine of biking or swimming (the kitesurfing season hasn't really started yet). Running was something I did if I couldn't get to a pool or didn't have the time for a long enough bike ride; it was exercise I did while traveling and when there were no better options. Born to Run made me question that assumption, and I decided to see how longer runs would feel. Over a year ago I read "You Walk Wrong", a New York Magazine article on going barefoot. It convinced me that I should be able to go unshod, or at least with minimally foot coverings. Why would 30 years of running shoe development be able to produce better results than millions of years of foot evolution? So I bought some Vibram Five Fingers to protect my delicate soles, and had been doing lots of hiking and a bit of running. The difference between running in running shoes and Vibram Five Fingers was profound for me. In running shoes, I typically stopped running because my knees and hips hurt, not because I was exhausted. The Vibrams forced me to take smaller, faster strides without heel strikes, and suddenly I was getting closer and closer to being able to run long enough to catch exhaustion without any joint pain. The concept of going barefoot was initially tough because of my flat feet and overpronation, and the possibility of re-dislocating a kneecap. I never went anywhere barefoot, and after I initially dislocated my kneecap in 2000, I was told by a sports medicine doctor that I should never walk without the aid of custom orthotics in my shoes. However, barefoot websites and forums are full of stories about people's arches coming back, and how kids raised without shoes never have flat feet. Amazingly, it's all worked perfectly for me. I now run without my orthotics without any knee pain, and my arches appear to have (re?)formed. After hopping out of the pool, I always inspect my wet footprints, and they now have distinct arches. I wish I had taken photographs every day to plot progress. With the characters and race in Born to Run still fresh in my mind, I looked for nearby races to give myself some motivation and something to train for. When I discovered that Oakland was holding its first marathon in 25 years, and that the route literally went through my neighborhood, I immediately signed up for the half-marathon and convinced Christy to do the same. I researched training regiments online, and discovered many were 4 and 5 month plans; since I had 50 days before the race, I decided simply to run longer and longer distances at a comfortable pace, and not worry about a rigid structure. I ran most of my miles on trails in the Oakland hills, and some on the streets, but all of them in my Vibrams. During a practice run on the half-marathon course three weeks before the race, I completed the half in less than my target time for two hours and felt so good that I opted to do the full marathon. In the marathon, I ran with GEICO-sponsored pacers aiming for a 3:50:00 time (8:46 miles on the flats, and slower miles in the hills; course elevation PDF here). Of the three pacers, one was running his 34th marathon, and the other two were ultra-marathoners training for a 200 mile race from Calistoga to Santa Cruz; their normal weekend run was 50 miles, so a marathon was like taking a break. Running in a group is awesome and way better than running by myself listening to audio books. On multiple occasions, I imagined that we were the hunters of a tribe out running down game -- water stations every couple of miles broke the illusion, but I still eagerly grabbed cups, and the community support was tremendous. There were bands, drummers, DJs, and gospel choirs making music along the route; families with full brunch buffets setup in their front yards offering all the runners fresh fruit and homemade baked goods; and many people just thanking us for running in Oakland. The second image shows all my runs in the 50 days leading up to the marathon. The first 5-mile run on the chart was the longest I had ever run at that point. While I was coming from something of a limited endurance background (I've biked 135 miles on a tandem from Boston to Provincetown in a single day), I didn't really know my limit. At mile 23 of the marathon, I finally caught up to exhaustion, and fell behind the pace group. The last three miles were painful, but in the last quarter mile, I couldn't stop grinning and felt like I might laugh and cry at the same time. When it was over, I just wanted to sit down. I was aiming for a sub-4-hour marathon, and I'm really proud to have done that on my first try. Everyone made fun of me for walking like a zombie the next day at work, and I have some pretty large blood blisters on my feet, but nothing that won't disappear in under a week. Go and read Born to Run, it might inspire you, too. Christy says: I'd always had to run as cross-training for other sports (I swam competitively for 13 years) and ran when I needed quick exercise, but hated it - my joints hurt, and it just wasn't fun. I was a distance swimmer and can hike nearly forever, but could literally swim farther than I could (or would) run. The most I'd ever run before was about 4 miles. I got my Vibrams with Eric, and really enjoyed hiking with them on my feet. I hadn't run in nearly a year and a half (pregnancy loosens the joints, which made running feel even worse) so when Eric announced he was signing up to run 13 miles I was dubious. However, I read Born to Run and was suitably inspired - I was in good cardio shape from swimming and stationary biking, and would happily hike 13 miles, so why couldn't I run that far? I decided to go out for a 5k jog to see what running felt like in my Vibrams. Long story short, I accidentally ran 6 miles, stopping not due to fatigue or joint injury but because of a blister from a poorly-adjusted shoe strap. I signed up for the half marathon that evening, and started taking increasingly pleasant runs through the parks and across the city. I ran the half-marathon course with Corvidae in her jog stroller, stopping to feed her periodically. Eric finished while I was on mile 8, so he backtracked along the course and met us at mile 10, by which time she was thoroughly done with this stroller nonsense and had migrated to the sling. I left the two of them to their own devices and jogged the rest of the way to the finish, about 3:25 after I started in the morning. Not terribly speedy, even given the breaks! The next day the bottoms of my feet were sore, and one of my Achilles tendons was a bit inflamed - I'd describe it as having overused my springs - but even though I was limping, my muscles were still in good shape. My pace is still quite slow (I ran the half-marathon in 2:42, for roughly 12:26 mile splits) but it's frighteningly consistent - I negative split most of the race, and at the end discovered I still had plenty of energy to sprint past a dozen exhausted runners. Clearly I didn't run fast enough or far enough, but I was specifically setting a pace I felt able to maintain indefinitely. The weak link is still my feet! While I had plenty of muscle and energy left at the end of the race, the bottoms of my feet were tired from use - more practice is necessary to balance out years of shoe-wearing. However, I recovered much more quickly this time, and was able to run again by Tuesday morning. No zombie shuffle for me! Of course, this means next time I'll be running the marathon, and at a faster pace!
Posted by ewilhelm 8 years ago
I don't run very much. I never was all that good at it. Lately, though, I have found the need to improve that ability, specifically my endurance at speed. I can slowly jog a mile, sure, but haulin'-ass-away-from-an-amgry-man-with-a-knife-speeds don't last much longer than thirty yards, if that. I'd like to improve my overall speed if possible, and especially increase the distance that I can cover flat-out before I keel over. I'm not going to be running a marathon anytime soon, but I'd like to be able to get farther than average, as fast as possible, on demand. Any tips for training or proper form? I live at roughly 5400 feet, but I'm just a short drive away from 14,000-foot peaks. I would also like to improve my off-the-line times--in other words, acceleration. If I were to need to run between ten and twenty-five yards, I can do that at my top speed as is, but that speed is not as fast as it could be. I'm generally not even up to full speed until eight or ten yards past the line. Suggestions?
Posted by Rishnai 10 years ago
While most of us here at Instructables are recovering from the holidays here in Alameda, one of our coders, Rachel, is off on an insane adventure. She and six others are in a rally race across India in motorized rickshaws. They hit the road on December 31 and will be traveling 2,500 miles over the next couple weeks.To keep us all up to date on her adventures, Rachel has a blog about the event complete with a map to show where they currently are. You should check it out at: www.rickshawrun08.comGo, Rachel!FYI, Rachel's rocking the white hat and jacket in the second picture and is on the right in the third.
Posted by fungus amungus 10 years ago
Hi I have a squidbee which i bought online, i soldered it and everything as i have the arduino board (uno) and xbee shield board, i fixed it as the instruction says but i realized i need to buy a gateway, therefore i want to change it back to using it through usb as i do not mind if its wireless or usb, but prefer usb as it sounds much easier. I am stuck now of what to do? do i remove the xbee shielf and just do everything on the arduino board? or do i remove the chip? i have no clue. the website is http://www.sensor-networks.org/index.php?page=0817717728 i am kind of stuck i have some idea but do not want to damage it as its part of my project thanks please help as soon as possible much appreciated dan
Posted by zekria1 6 years ago
Trying to figure out how to make a circuit for a LED light that is run by two AA or two C batteries. I would like the light when turned on to run for 6 hours and then turn off. Then autmatically turn on the same time each day and run for 6 hours without having to manually reset the light. Having a hard time trying to figure out how to make this timer. It would also be a bonus if the the led flickered like a candle. Thanks for any help in the right direction.
Posted by pdub0626 9 years ago
Hi, i run a 1980's suzuki 50cc moped. its electical system charges a 6v 2amp battery. I need to charge my phone from the moped battery using a car cigerete phone charger that is designed to operate off a 12v system. the phone charger runs from 12 volts and its output is 5v 500ma. i tryed connecting the charger strait to the moped battery but nothing happens. not even a lower voltage is shown! the phones battery is 3.7 volts. the phone will only charge if i use the phone charger on a 12 volts supplie. is there a device i can use as a work around to connect strait to a 6v battery that will then boost output to 12v in order i charge my phone. please help as i need my phone for my work. the phone is a xda zest. with a built in gps navigator that i want to use all of the time on my moped. thanks for replies in advance.
Posted by selectauto 6 years ago
Hi I'm new to this site, I need help in installing a small remote listening device (simcard type) into my child's toy, I already have the device and the toy which I'm going to use, the toy is battery operated, I just want to know how I would connect both items so listening device receives power from toy batteries. Listening device dose have its own power supply but it runs out of power after a few hours. can any one help
Posted by Alik112 5 years ago
Hey guys(and maybe girls), i just hacked my brothers psp slim. Now i am used to the phat pap where you install the 1.50 subset to get homebrew to work, but that said only for fat psp. Only some homebrew works on the slim psp, but has major issues. for instance psp revolution has no sound anywhere, and none of the bottom buttons work. I have tried both the 5.00 and 1.50 kernels in the recovery menu. Is there some patch, or homebrew launcher that i dont know about?? should i install the 1.50 kernel addon anyway? firmware is 5.00 M33-6
Posted by A.C.E. 9 years ago
The PSP Port of bochs was apparently ported for 1.50 Firmware, and no other, Making incompatible with the modern 5XX Custom Firmware. Does anyone here have experience on this and have you gotten bochs to run and at least got past the BIOS loading part? The reason i am forced to use bochs is because it supports All os'es out there, According to my tests, bochs Should be able to Allocate up to 41.2 MB of RAM on a PSP SLIM, but i can't get bochs to start on my PSP. When i start it it gives me the traditional error(that means that it is only for firmware 1.50) So i installed LEDA It stands for something, supposedly it allows you to run most 1.50 firmware apps on 3++ Firmware. Now it starts, It slowly fades out, like perfect And then after a few seconds it exits, no error, what i suspect being wrong is a configuration file. So If anyone got it to run, At least to the Bios loading part, Keep me updated, and post a comment. Thanks ~ReCreate
Posted by ReCreate 9 years ago
IF you want to run applications that are not enabled by defult, right-click and select 'run as administrator' that's it. it's that simple. you still can't install anything but you can play most games/ run most apps with this simple trick. Have fun =P
Posted by pbmoose 8 years ago
I need help in figuring out a way to clean the build-up in my dryer vent run. The run is in a crawl space and approximately 25 feet long. I have been unable to find anything available to run through it to clean the lint buildup. Thanks in advance for any viable suggestions.
Posted by imasiberian 9 years ago
I was wondering how much it would cost to buy a laptop that would run this game. Not necessarily at max settings, but at least run the whole game. Thanks.
Posted by SC-Ghost 9 years ago
Please, is there a setting to stop this invisisable video on instructables from running everytime I get to the site it runs, when I reload the page it runs again, when I go to another instructable it runs.
Posted by MsheArt2 1 year ago
Whenever I run a 5k, I'm finding that my ears start to pop part way through. It makes everything louder, including my breathing, and is extremely distracting. One website mentioned dehydration as a factor, another said something about blood pressure...does anyone know about it? Thanks!
Posted by Weissensteinburg 9 years ago
I know it is possible to build a fountain that runs on gravity and water pressure, but I'm not sure how to go about making one. I understand that you can't get something from nothing, and I'm not looking for a fountain that would run endlessly. If someone could show me the basics of how such a font might work, I would greatly appreciate it.
Posted by Trigonography 7 years ago
I have a device that runs on ac (110-120 Vac - 180w). I want to make it portable so that it can run off a battery pack such as AA or 9 Volt or even a custom battery. Is this too much of a power requirement to make it possible??? thanks in advance for your help.
Posted by gadgetcrazy 10 years ago
I want to download Ubuntu Linux onto a flashdrive, and then be able to plug that into a computer(running Windows XP) and run off of Linux from the flashdrive. Can I do this? As in, I plug the flashdrive into the computer, then restart it. After it reboots, it starts up in Ubuntu, then just runs on Ubuntu like it would on a computer that normally runs on it. But instead of using the computer's hard drive, it stores on the flashdrive. Then, when I'm done, I can shut down the computer, unplug the flashdrive, and then when I boot the computer back up, it runs off of Windows XP like it normally would, like nothing happened. How would I do this? Is there a special distro of Linux I would have to do this on, or would it work just normally on Ubuntu? I would prefer not to partition the hard drive.
Posted by metrogdor22 7 years ago
Anybody ever run barefoot (on pavement)? I did it in college (5 years ago) a lot on the grass playing soccer and rugby. I started running on pavement (with shoes) afterward and was killed by knee aches and achilles tendon problems. I connected the injuries to the pavement, not the shoes. Now I hear that maybe millions of years of evolution actually makes humans really good at running without shoes, so I decided to give it a go unshod. Went almost a mile today on a pavement track, and it was a bizarre experience. The motions and muscle movements were all completely different. But I liked it. My feet and legs are very strong so I didn't have any problems with weak feet. It was just different motions. Anybody else?
Posted by marcward86 7 years ago
Hi all, We just finished a remote control lawn mower project that utilizes 2 24V wheel chair motors and two wheel chair batteries for drive power. The balde is powered by a gas engine. The unit weighs in at around 260 lbs and is used for some serious slope mowing. The issue I have run into is that I can only get about 1 hour run time before having to recharge. Does anyone have any suggestions as to how to increase the run time without decreasing power? Thanks
Posted by real57vetteguy 5 years ago
I managed to run Windows XP (stable) with as little as 18MB of RAM, Originally for my PSP to run.With Dosbox i can Allocate up to 16 MB of RAM, with a little tweaking i could get it to reach 18MB.But XP Can't run in DOSbox, But it Can Run in Bochs, It may be slow but hey, If i can Run Windows XP on my psp, It is still an accomplishment.Here are some screenshots of it Running is QEMU, On a PCSo what do you think, I am planning to port QEMU to the PSP so we can finally make this a reality, BOCHS only works in 1.50 Firmware, and i don't see a psp Slim with 1.50 and my PSP is a Slim and ...well you know.Well ThanksBe sure to comment(and rate, Just because it is neat seeing topics with a rating...) And tell me what you think!~ReCreateEdit: Now i uploaded a video!(or i am uploading a video...i have to remake it due to the stupid 10MB limit)
Posted by ReCreate 9 years ago
Any idea how to de-hybrid a Prius? Convert it to run as a gasoline only vehicle. From what I've read you have to: 1. Rig up a reverse. 2. Have enough battery power to turn the engine over. 3. Recharge that battery while the car is running. Has anyone done this? Know anyone who has? Have any ideas on how to accomplish this?
Posted by Lokisgodhi 2 years ago
I have five servos running off a picaxe sd21 servo controller and it will operate using four AA batteries, but I want it to run off a wall adaptor. Now theres plenty of adjustable adaptors on the market giving from 3V to 12V and I've seen one that might work for me that can be set to 6.5/ 7.5V, but does anyone know the suitable current range for my device.
Posted by jonnymelon 4 years ago
I have been trying to edit the opening image of my latest project, but when I start the Pixlr editor, the upload bar runs across to 100% without problem, but then stops at 100% and nothing else happens. The adverts run fine, though... Running in Firefox and Windows 8.
Posted by Kiteman 3 years ago
Over the last few days I've noticed that Instructables.com is running VERY slow. I usually can open 20 or more tabs at a time on the server but lately I can only open 1 or 2. I hope that other people have noticed this and it can get fixed soon! Thanks, Jake
Posted by Jakeg 8 years ago
Hey guys, I'm having a bit of trouble.I'm trying to use these baby's for a project I'm doing (you may see it in the Let It glow Contest if I finish it in time) but I don't know what voltage to run them at. I know that they work best at 350mA of current.They appear to be a cheap Luxeon copy, so I guess they would run at the same voltage. But, another problem, I cant find what voltage they run at!!!The one's in paticular i'm wanting to use are the ZD-0500 - Red - hereZD-0502 - Amber - hereZD-0504 - Green - here
Posted by Da_Fudge 10 years ago
I have an amd athlon 2 x2 245 processor which runs at 2.9 ghz. My games and computer runs slow when i run too many processes but i would like to have more processes then i can currently run. I have 8 gigs of ddr3 ram which is good. but my processor isnt the best. I do have a cpu meter and it hits 100% when i first boot up my games. with chrome and my gadgets running it stays from 15-35%. So any help would be greatly appreciated. Thanks, Logan
Posted by loman1997 6 years ago