A friend tried to describe it to me a year or so back, but his description didn’t make sense to me. When I saw the “hydraulic ram pump” for sale in the Lehman’s catalog it got my attention.

I’d call it a “reverberatory ram pump” but regardless; it is fascinating. You can google it yourself, or look it up on youtube. In short; it uses a larger flow volume by setting up a resonance to create pressure spikes that lift a smaller flow volume– No power input required beyond that of the kinetic & potential energy in flowing/falling water.

The design and construction is so simple that it could have been done in ancient Roman times. Though I have yet to look up its history, I’m guessing it’s development is much more recent than that.

There are other ways to skin that particular cat depending on the circumstances, but this one wins in the cool factor. What I also find interesting is the small scale on which some of these run. One of them on youtube shows a system running on little more than a trickle.

Almost everyone knows that leaving the refrigerator door open in the summer doesn’t, on the whole, make your house cooler. But did you know that in the winter you could use your freezer to make ice, store it in the ice-house for summer use, and make more ice you would be using the refrigerator as a heat pump and warm the house? This would make more efficient use of the electricity for heating than if you used that same electricity to heat your home directly with an electric furnace or baseboard electric heat. Part of the heat comes from the electricity used to run the freezer and the rest of the heat comes from the water you put in the freezer. You remove heat from the water, causing it to freeze, put the heat into the air, which raises the temperature of the air.

Plus, when you use the ice you stored in the winter the next summer you save on your summer electric bill as well.

Yeah, I know. What a geek. That what you get when read the blog of someone who thought their thermodynamics class was fun.

Several years ago a friend suggested I read Rare Earth: Why Complex Life is Uncommon in the Universe. I read the book but was pretty annoyed at it. Among other things that I thought were faulty one of the claims was that a low radiation environment was required for life. I was skeptical. Sure, all life as we know it is damaged by radiation but that doesn’t mean that some life form couldn’t evolve that actually required radiation, right? Wouldn’t intelligent life from that evolutionary chain conclude the earth would be lifeless because the lack of radiation required for certain of their life processes didn’t exist?

It turns out we now have life on earth that flourish in a high radiation environment. You can thank the Chernobyl disaster for that.

This has been coming for quite some time (H/T to Jeff):

Triulzi said he’s seen plenty of firmware-targeting malware in the laboratory. A client of his once infected the UEFI-based BIOS of his Mac laptop as part of an experiment. Five years ago, Triulzi himself developed proof-of-concept malware that stealthily infected the network interface controllers that sit on a computer motherboard and provide the Ethernet jack that connects the machine to a network. His research built off of work by John Heasman that demonstrated how to plant hard-to-detect malware known as a rootkit in a computer’s peripheral component interconnect, the Intel-developed connection that attaches hardware devices to a CPU.

I wrote and demonstrated to some folks in D.C. a prototype of something like this in 2004 or 2005. Even before that lots of people knew it was possible.

You can remove all hard disks from your computer, install empty ones, and as the computer is booting up for the first time infect the new hard disk before the O/S even attempts to boot off of the CD drive. Of if you wanted you could just refuse to boot.

Imagine a stealth virus that infected some large percentage of all computers then on September 11^th would only perform one function—format any storage device it had control of.

Sleep well.