Ideas

Giant wind-blown ball rolls around and detonates landmines

There are 110 million active landmines strewn across 64 countries around the world, according to the United Nations, leading to thousands of people being killed or maimed every year. Huge stretches of land are danger zones. Clearing those areas is a hazardous and delicate operation that puts people at great risk.

Afghanistan-born designer Massoud Hassani has come up with an unusual minesweeper that uses the wind to propel itself in a search for landmines. The Mine Kafon is made from bamboo and biodegradable plastics. The plastic feet push against the ground, triggering landmines with pressure.… Read more

Solar tactically used on the Afghan front

A Marine experiment aimed at determining whether it's beneficial, or even feasible, to use solar energy in the theater of war has landed on the side of solar.

That's according to an article filed Wednesday by Gunnery Sgt. William Price, 1st Marine Division, about Marines located in the Sangin District of Helmand Province, Afghanistan at what's known as an "experimental forward operating base."

The Marine 3rd Battalion, 5th Marine Regiment at Forward Operating Base Jackson, and its Afghan national army counterparts, have been using portable solar blankets to continuously charge radio batteries while on long … Read more

Wrapping up Speeds and Feeds, part 5: Access

In this last wrap-up post for Speeds and Feeds, I address what may be the most important issue in the future of personal computing architecture: consistent data access across multiple platforms.

Perhaps it's my multi-platform background, but I've never demanded or expected consistency in form factors, user interfaces or even capabilities. Variety in these areas is great; it's what makes the personal computing market so big. Variety is also why I keep so many PCs and consumer electronic devices around (see photo); I like knowing I have the right tools for many different jobs.

On the other … Read more

Wrapping up Speeds and Feeds, part 3: Ruggedness

As I continue to wind down Speeds and Feeds, I picked ruggedness as the topic for part 3.

In part 2 of this wrap-up series, I on Tuesday discussed reliability, suggesting that an increasing portion of the transistor budget in personal computers should be used to avoid, detect, and recover from hardware, software, and data errors.

Ruggedness, the ability of a PC to survive adverse physical conditions, complements reliability by further increasing the practical availability of a PC to do useful work.

As with efficiency in power management (part 1's topic), this is an area where PCs can learn … Read more

Wrapping up Speeds and Feeds, part 2: Reliability

Personal computers have become much more reliable over the last 10 years or so, mostly due to the introduction of advanced operating systems with memory protection and hardware abstraction. The hardware itself has gotten better too; uncorrectable random errors are rare in PCs and extraordinarily rare in server-class systems.

These and other improvements have largely eliminated machine crashes. Blue-screen errors on Windows and kernel panics in Linux and Mac OS X still occur, but much more rarely.

Error-reporting services have become common, helping software developers figure out what went wrong. Most large developers now issue regular patches to fix newly … Read more

Wrapping up Speeds and Feeds, part 1: Efficiency

After 19 months of consulting--in Silicon Valley, we prefer that term to "unemployment"--I've accepted a job.

Once I start, I'll have to stop blogging. But while I'm still independent, I'd like to wrap up here by offering a short series of articles addressing several key topics in the area of personal computing.

Today, the topic is energy efficiency.

Energy efficiency has become a major selling point of today's personal computers, especially laptops, because power consumption determines battery life.

Unfortunately, laptops are being optimized for energy efficiency in a way that isn't … Read more

Carl Malamud's digital manifesto

We all understand that government could do more to benefit from computer technology, but Carl Malamud can say exactly what it ought to do differently.

In a speech at the Government 2.0 Summit in Washington, D.C., last week, the online activist laid out a strong argument for how government should be using technology to make the legislative process and other government operations more accessible by the public.

Malamud fit his recommendations into an explanation of how the U.S. government has evolved over the last 250 years. He discussed how the nation's founders "established the principle … Read more

Microsoft's premature patent proposal

In a corporate blog post this week, Microsoft Vice President Horacio Gutierrez promoted the idea of a "harmonized, global patent system," in which all the nations adopt common standards for processing and approving patent applications.

Properly done, patents approved in one country could become enforceable in other countries, as is the case with copyrights under the terms of the Berne Convention.

I really have no problem with harmonization if it is properly done, but I think it would be tremendously difficult to achieve good results. The reality of patent protection is radically different from that of copyrights because … Read more

Want it? Make it, DIYers

The annual Maker Faire, which lies somewhere between San Francisco's counterculture tradition and Silicon Valley's materialism, is set for this weekend in San Mateo, Calif.

Now in its fourth year, the event is organized by Make magazine and showcases the work of people who build everything from wooden bicycles to life-size robotic critters.

I've been making some fun things myself since I bought a small milling machine awhile back. Here's a titanium adapter I made to attach a small commercial USB flash drive to my keychain:

Not long ago I found some blocks of aluminum bar … Read more

Singularity University: Hope or hype?

The "Singularity" is that postulated point in time when technological progress, led by machine intelligences designing their own replacements at an ever-increasing rate, becomes so rapid that we mere humans can no longer comprehend or control it.

It's a popular concept in science fiction. Some people believe that this point will eventually be reached in the real world. I think that those people are drastically underestimating the other limits to progress, such as bandwidth limits for data gathering, the difficulty of comprehension, and the inverse relationship of speed to reliability in data analysis.

They're also confusing … Read more