You can buy a giant LED from a guy who makes them at home. The cost about $70.
From his site:
My first Maker Faire as a maker was New York 2012, I brought a Giant Arduino Starter Kit (YouTube video Giant Arduino Starter Kit - A 10x Scale Model). Everything was ten times scaled up; the Arduino Uno, breadboard, resistors, potentiometer, LDR, jumper wires, and LEDs.
As the LEDs were portable, I would bring an LED with me to other Faire's, it has always been received well and many times people would ask was it for sale.
In September 2018 I decided to explore turning the rough model in to something that I would be happy to sell. The following YouTube playlist records some of the progress in Making a Refined Giant LED.
[via Evil Mad Scientist] Read the rest
When it comes to making rope, there's no school like the old school. I love that, despite the advances made in the areas of fabrication and industrial automation, there are still products made using methods that haven't changed in a century. Some things, as this video from How it's Made illustrates, are better off without updates. Read the rest
Immortal Masks make a lot of masks, prosthetics and horrific creatures we see in films that later end up haunting our dreams. This video shows exactly how they do it. Read the rest
I maintain emergency kits for my home and jeep. There are a number of bug out essentials in the pack I carry with me anytime I leave the RV. I've written a lot about emergency preparedness gear for several outlets over the years. Keeping folks safe during an emergency was a big part of my old life. Despite all of this, I have a hell of a time finding a flashlight that doesn't cost a mint that I feel comfortable recommending to folks for their emergency preparedness kits.
I hate hand-cranked flashlights, despite loving the idea of objects capable of providing their own power. Not a single hand-cranked torch that I've tested over the years has lasted me more than a few hours of use before showing signs of impending mechanical failure. In an emergency, solar powered gear is great to have... provided there's enough light to provide an adequate charge to the battery that you've got connected to your panels. Depending on where you live or what sort of disaster has knocked out your home's lights (there's not a of a lot of sunlight during a hurricane), it might not be a great solution for many people. Happily, it looks like Panasonic has developed a flashlight for their Japanese customers that can use damn near any battery you might run across during an emergency.
Panasonic's Any-Battery LED Flashlight BF-BM10-W, as its name suggests, can make use of any number of different batteries to provide you and your family with enough illumination stay safe and provide some much-needed comfort during an emergency where the power grid goes down. Read the rest
I bought this cute handpainted octopus cup $16 on Amazon) as a Christmas present. I'm not going to tell the recipient how to use it, but I think it would be a cool toothbrush holder.
Read the rest
Recomendo is a weekly newsletter with 6 brief personal recommendations of cool stuff, written by Kevin Kelly, Claudia Dawson, and myself. Get the Recomendo weekly newsletter a week early by email.
This no-graphics version of CNN’s website looks like the web circa 1993, and I love it. I think they should run a couple of text ads to monetize it, because I don’t want them to stop. —Mark Frauenfelder
Cheap mobile home
For generations hipsters have been retro-fitting vans into mobile homes. Once they were VW vans; today they are Dodge Sprinter vans. The best source I’ve come across for tutorials on how to remodel a used cargo van into a roaming house is a YouTube channel by Dylan Maga. Maga collects diverse videos of hundreds of regular folks building their vans and tiny homes in great and satisfying detail. — Kevin Kelly
I can’t believe I didn’t know these Youtube shortcuts before! To pause a video press K. To fast forward press L. To rewind press J. To watch frame by frame forward or backward, press the period or comma key. — Claudia Dawson
Garage parking aid
There’s probably a simple DIY substitute for the AccuPark Vehicle Parking Aid, but I was happy to pay $11 for it. I adhered this yellow plastic mini speed bump to the garage floor using the attached double-side tape. We can now drive our electric car right up to the optimum spot to plug in the charger port. Read the rest
Physics Toys is a website (and Instagram account) of kinetic curiosities. Check out all the cool double pendulums, which exhibit chaotic behavior that put fidget spinners to shame. Here's a neat statuette of an alchemist who have a levitating magnetic cube between his hands.
The Alchemist: cast from diamagnetic Bismuth, a neodymium cube magnet levitates trapped between the hands of the ancient scholar. Diamagnetic substances only have magnetic fields of their own when placed in an external magnetic field from another source- here the cube shaped magnet supplies the field. Diamagnetic fields are pretty weak though so a cylindrical neodymium magnet hangs above the figure and is adjusted to help lift the cube magnet against gravity. Trapped in equilibrium by these magnetic fields, the slightest air currents can send the cube magnet dancing. Although alchemists never succeeded in transmuting lead to gold, in 1981 physicists used the particle accelerator at Berkeley to shoot Carbon nuclei at thin foils of Bismuth- the resulting collisions did produced a tiny amount of Gold atoms! So modern nuclear physics, applied to the element Bismuth, finally accomplished the aspirations of the alchemists.
The creator of the statue, Ernie McElhannon, is selling it for $299 on Etsy.
Read the rest
The Alchemist: cast from diamagnetic Bismuth, a neodymium cube magnet levitates trapped between the hands of the ancient scholar. Diamagnetic substances only have magnetic fields of their own when placed in an external magnetic field from another source- here the cube shaped magnet supplies the field. Diamagnetic fields are pretty weak though so a cylindrical neodymium magnet hangs above the figure and is adjusted to help lift the cube magnet against gravity.
Every week, Kevin Kelly, Claudia Dawson, and I send out our Recomendo newsletter. It's a lightweight rundown of six useful things. (Sign up here!) Here's this week's newsletter:
Five good crime books:
On the excellent Five Books website Author Simon Brett is interviewed about his five favorite crime novels. Three of his picks (A Kiss Before Dying, The Big Sleep, and The Talented Mr. Ripley) are among my favorites, so I added his other two picks to my wish list. — MF
I spent almost four hours lounging in this papasan float on the 4th of July and it’s now my favorite purchase of the year. Half my body stays in the water, so I’m able to stay cool while basking in the sun. The only drawback might be how easy it is to relax — time went by so fast, I got sunburned. — CD
You know about Song Exploder, yes? It’s this amazing podcast that takes one well-known song each week and explodes it into its component parts. The musicians who wrote and perform the song take it apart track by track, sometimes beat by beat, explaining what they were thinking as they created the pieces: what challenges and dead-end they met along the way, how the song changed as they worked on it, and why they like the final version. It’s the x-ray into music I always wanted. — KK
Free app finder:
Daily App Advice shows you which paid apps are currently being given away for free in the iTunes App Store. Read the rest
Our guest this week on the Cool Tools Show is Donald Bell. Donald runs a great website called Maker Project Lab, and he also hosts a weekly YouTube show called Maker Update, which collects interesting projects, news, tips, tools, and other stuff for the Maker community. He was a Projects Editor at Make magazine, and he spent eight years as a Senior Editor at CNET.
Subscribe to the Cool Tools Show on iTunes | RSS | Transcript | Download MP3 | See all the Cool Tools Show posts on a single page
Hakko FX-901 ($32)
"I've had inexpensive soldering irons for years now, but they've always been ones that plugged into a wall. I came across the Hakko when I was looking for a soldering iron I could buy multiples of to do a soldering workshop, and the idea of plugging in 30 soldering irons is like plugging in 30 hair dryers. It can become a nightmare if you really are trying to do it without tripping a breaker. …It’s become one of my new favorite things. It runs off of four AA batteries, and it heats up in about 30 seconds to a good soldering temperature for accomplishing just little PCB basic electronic projects, and it’s been great."
Manfrotto 143 Magic Arm Kit ($154)
"This one actually I learned about from Becky Stern, Make alumni. But before I started working at Make, when I was doing how-to projects for CNET, I was trying to figure out the easiest way to take those great shots of your work, like an overhead view of your workbench, while you're working on a project. Read the rest
Recomendo is a weekly email newsletter I do with Kevin Kelly and Claudia Dawson. We have 11,000 subscribers. Subscribe here! This week's recommendations:
In the last six months I’ve learned over 500 kanji characters and Japanese vocabulary words using WaniKani, a “spaced repetition system” flashcard website. The first 3 levels are free, after that you can pay by the year or buy a lifetime account. (Disclosure, my wife used to work at WaniKani’s parent company). — MF
My wife picked a small cubic zirconia synthetic diamond for her engagement ring. Because it is just one carat it looks like a diamond. Nobody can tell it is synthetic. Really. It cost $24. Real diamonds are a ripoff. — KK
I enjoy the occasional Joe Rogan rant, because he can be very enlightening. Thankfully, his video on Happiness is short and straightforward, and surprisingly uplifting. Personally, I struggle with “[Happiness is] not having all your ducks in a row on paper,” so this video is a good reminder. — CD
Near future must read:
The juiciest source I know for what’s new in the world of artificial intelligence, biotech, and the near future is the free weekly newsletter from Azeem Azhar called Exponential Review. His succinct list of links, annotated with his remarks and degree of confidence of its importance, are a telegraphic way to keep up easily and quickly. I’ve found more good stuff from him that no one else is pointing to. Read the rest
Jason Kottke asked his readers to tell him "what were the best web sites that they knew about that most people have never heard of." I've been going through his curated list of the top 56. My favorite so far is Pink Trombone, a human voice synthesizer. While playing it, I felt my own throat moving to match the cartoon throat. Freaky! Read the rest
The popular and highly-rated Anker SoundCore nano Bluetooth Speaker is on sale today at Amazon for $19, if you use code KINANK66. I used mine over the weekend to listen to an audiobook (The Handmaid's Tale) while painting my daughter's rooms. for the size, the sound quality is excellent. Read the rest
Recomendo is my weekly newsletter that gives you 6 brief personal recommendations of cool stuff. It has almost 10,000 subscribers. You can subscribe here.
pTen dollar watch:
I wear a watch, not as expensive jewelry, but as a clock I find easier to inspect than a phone. I have four requirements for a watch: 1) Bold, easy to read numbers on an analog face. 2) Easy band. 3) Long battery. 4) Dirt cheap. The cheapest analog-faced wrist watch I’ve found is the Casio MQ24. It costs $(removed) I’ve worn most of the cheap ones (Swatch, Timex) and this one lasts the longest. (What usually gives out first on these cheapies is the winding stem for changing the time.) — Kevin Kelly
GUM Soft-Picks do a better job than toothpicks or floss for cleaning food and plaque from between my teeth. The soft green brush pushes out all the gunk without hurting. I buy the version that comes with the travel cases. — Mark Frauenfelder
Contacts without prescription:
I recently went to the optometrist and got a new prescription for contacts, but for the last 7+ years I’ve been ordering my contacts without one from 1-Save-On-Lens. I’ve never had an issue. I ended up buying my new contacts through the same site because it was cheaper than what my optometrist wanted to charge me. — Claudia Dawson
If you lose or forget to bring a cable, adapter or charger check with your hotel. Most hotels now have a drawer full of cables, adapters and chargers others have left behind, and probably have the one you are missing. Read the rest
Get the Recomendo weekly newsletter (written by Kevin Kelly, Claudia Dawson, and me) a week early by email.
If the Found Footage Festival tour ever comes your way, I highly recommend you check it out. The two guys who host the events scour thrift stores and yard sales for the most obscure and awkward infomercials, public access shows, training tapes and home videos to showcase. I’ve been to four of their shows and I always laugh so hard it hurts. They currently have 8 volumes available on DVD. You can watch videos of some of their findings on the website. — CD
The US is basically the only country in the world not using metric. It’s not that hard to learn a rough sense of how many kilometers in a mile, or pounds in a kilo. But it is very hard to convert temperatures between Centigrade and Fahrenheit. The solution is to convert all your thermometers to Centigrade: on your phone, in or outside of your house, on websites. Have any digital device display only Celsius, so you can’t cheat. In about a year, you’ll have a reliable and native sense of what’s cool and warm in degrees C. This is supremely handy if you travel anywhere outside of the US. — KK
I feel like an idiot for not discovering OverDrive sooner. It’s a free mobile app that lets you check out ebooks, audiobooks, and videos from your local public library. To use it, you need a a library card from your town or county. Read the rest