28 May 2014

Unusual uses for 3D printing

3D mugshots from DNA

Analysis of crime scenes and witness reports can be more of an art than a science. One problem is that witnesses may not recall a face clearly, and investigators can run the risk of sending the wrong suspect behind bars if they rely too heavily on this kind of evidence. However, new technology promises to change that.

Mark Shriver and colleagues from Pennsylvania State University have spent months gathering 3D images and DNA of hundreds of volunteers. Over time, they managed to plot over 7,000 facial points of reference, which have been fed in to software that links similarities between facial features, DNA, race, and gender.

The team found that only 20 genes with 24 variants proved to be "reliable indicators" of facial shapes — and by using 3D printing, human heads with resemblance to the volunteers were created based on their DNA. In future, if there is DNA at a crime scene, it is possible that suspects faces can be printed from it, and witness reports may be less of a factor in proving a crime.

3D printed clothing

The N12 bikini is the first ready-to-wear garment produced purely through 3D printing technology. Designed by Continuum fashion, in cooperation with the Shapeways 3D Printing online printing store, the N-12 is composed of tiny nylon disks that hook together. Each component — including the strap, cups, and halter — are printed and sold separately, amounting to roughly $300 to own one for yourself once you snap each part together.

Make your own musical instruments

3D printing can supply us with medical devices, guns, and vehicle parts, but it can also include the musical realm. Two examples: One, the Dreaming Pipes project on Kickstarter, wants to allow 3D printing enthusiasts to create their own set of bagpipes at home. Considering the cost of traditional models, such a scheme could bring more pipe players into the fold. Secondly, the ATOM 3D printed guitar is on sale. Inspired by Les Paul, the bodies are fully printed from nylon, and each feature a wooden inner core. The guitars are dyed to order, and each one will cost you $3,500.

A food 3D printer

Natural Machines has launched the “Foodini 3D food printer” via a Kickstarter campaign. The Foodini Printer comes with empty capsules, which the user fills with whatever foods they wish. By using the printer's touchscreen display, you choose the shape and settings you want in order to create your dish. There are also pre-programmed recipes for dishes, including pumpkin gnocchi, pizza, burgers and cookies. The point of the invention is to remove the hassle of cooking, but encourage you to use fresh food rather than sticking to pre-packaged food.

3D printed meats

The future production of food is likely to be a problem as the human population expands and so do our meat requirements. Scientists are trying to create test-tube burger meat in labs to prepare for the potential crisis, and the Thiel Foundation has awarded Modern Meadow funds to try and create bio-printed meat to satisfy the human need for protein. Modern Meadow wants to use 3D printing to create synthetic meat in a less resource-hungry manner.


Do Chromebooks have a role?

Desktop PCs, ultrabooks, laptops, netbooks, tablets, and… Chromebooks. What a choice! But, wait… Chromebook? What is it? Is there a role for it in this densely populated technological world?

What is a Chromebook?

The name “Chromebook” was invented by Google, the developer of the Google Chrome Internet browser and the Chrome operating system (OS) which is based on Linux. A Chromebook is a laptop that runs Chrome OS and the Chrome browser. They normally have basic, low-cost hardware specifications. They are designed for use primarily when connected to the Internet. They use applications (apps) that reside on the Internet, instead of traditional apps that reside on the machine itself.  You obtain apps via the Google Chrome Web Store. All data is stored on cloud services accessed through an Internet connection.

What can you use a Chromebook for? 

Normally, a Chromebook has very limited local disk capacity because of using cloud storage.  Chrome OS loads very quickly, so a Chromebook starts up very fast. Chrome OS keeps itself automatically updated with security updates, etc, so the user never needs to be concerned about that.

While Chromebooks are designed to be used when connected to the Internet, users can use Google apps such as Gmail, Google Calendar, and Google Drive while offline. Chromebooks come with a built-in local music player and a photo editor that can be used without Internet access. So you can listen to music, write emails, and edit photos offline, ready for when you go online to share or save them.

Why use a Chromebook instead of a normal laptop?

Increasingly, people’s perception of technology revolves around the Internet.  Millions use social networking sites to inter-react with their friends and colleagues, and online email services like Gmail, Yahoo! Mail and Outlook.com are very popular. If you spend most of your computer time on the Web, then the Chromebook might well be for you. When you need to do a bit of word processing, you can use Google Drive to create and edit documents both online and offline. It isn’t as sophisticated as Microsoft Word, but it does do a good job.

Why use a normal laptop instead of a Chromebook?

By definition, a Chromebook does not run Microsoft Windows. It can’t run Windows applications such as MS Office (Word, Outlook, Excel, etc) or others that depend upon Windows. If your computer use demands a Windows application that has no matching one in Chrome, such as an  application for company book-keeping, then you need a normal Windows laptop and not a Chromebook.

You may also be like me and be very concerned about the safety of your documents. With a Chromebook, they are all stored on the cloud in Google Drive. I prefer to have multiple backups on local network drives, as well as using the cloud (in my case I use Dropbox and Google Drive). Can you tell I had a bad experience with data loss?  I doubt you can keep so many backups with a Chromebook.

So, there are many advantages, and some disadvantages, to the Chromebook. In a world where so much time is spent online, demand for low-cost access has meant widespread popularity of low cost devices like the Chromebook. You may well make one your next purchase.