Monthly Archives: February 2007

Zero Point Energy

I had an idea for producing thrust from zero point energy. Hopefully you are familiar with the Casimir effect. You place to parallel plates very close to each other:

You get a net attractive force between the plates because wavelengths of virtual energy that are longer than the spacing of the plates are absent between then but present outside and thus push the plates together. The shorter the distance between the plates, the more wavelengths are excluded and the stronger the force pushing them together.

Let’s suppose instead you don’t make the plates parallel:

This would make more force pressing on the plates where they are close together than where they are farther apart. Given that the force is applied at an angle relative to the plates, shouldn’t that make them then want to move in a net direction away from the point where they are closest together?

I’m wondering if you etched a bunch of these very tiny structures (since most energy is contained in the smallest wavelengths) into a chip if you could get a measurable thrust?

More on Mysterious Dust

There is more to the mysterious dust. Tree pollen makes up the bulk of it. Pollution blown over from China is also a component of this dust. The contribution from China includes dust from the Gobi desert kicked up by huge dust storms there, and soot and mercury from China’s 2500 coal fired electricity plants.

Deja Vu

I’ve heard so many bogus theories on Deja Vu that involve various brain functions, one part of the brain getting information before another, or information coming directly to one hemisphere of the brain and then delayed via the corpus collosum from the other hemisphere.

I’ve experienced Deja Vu many times and so I decided to test these theories. I had the radio on, a live talk show was in progress. All of the sudden I realized I was in a Deja Vu experience. I knew exactly what the announcer would say almost fifteen seconds in advance.

So, I spoke out loud what I knew the announcer would say. I heard my own voice come back and close to fifteen seconds later the announcer repeat exactly what I said, and this lasted almost a minute.

None of these “brain part” explanations can explain my hearing the voice what the announcer will say in advance of the announcer saying it, and it was a live show so it was not possible for me to have remembered a previous broadcast of the show.

I don’t know what the explanation of Deja Vu is, but I know what it’s not.

Lithium Battery Safety

Your cell phone, your laptop, and other modern devices with rechargeable batteries are most likely powered by lithium ion battery packs. Lithium ion batteries provide a higher energy density than competing cell technologies widely available today.

I’ve used a cell phone with a lithium ion battery for a number of years and until today I was never aware of the very serious and potentially dangerous limitation of this battery technology.

If you charge a lithium ion cell at temperatures below the freezing point of water, a metallic lithium plating builds up on the cells anode. If the battery is then subject to a sharp impact or rapid charge rate it can result in a thermal run-away condition that can result in an explosion or fire. Even if the battery does not go into thermal run-away self-destruct mode, the plating will still ruin the battery.

Do not charge your lithium ion battery if the temperature is below freezing!

Mysterious Dust

A mysterious dust coating much of the Puget Sound region has baffled many people. Some have said it had a “volcanic” quality, similar when Mt. St. Helens erupted. That speculation had me a bit nervous since I’ve had dreams of massive volcanic activity along the Cascades all of my life.

My eyes have been bothering me lot the last few weeks, gooped up, as has my nose and sinuses, that was another mystery.

Well, it turns out the mysterious white powder is tree pollen which explains my eyes being gooped up. That’s something that I usually get to deal with during tree pollen season but that’s also something that happens slightly later in the year. I hope this also means it gets over sooner and I’m not miserable through mid-June.

Meta Materials

It has long been known that very small bits of matter, less than a few tens of thousands of atoms, can exhibit properties quite different than bulk material. Only recently have we had the ability to create structures from materials that are substantially smaller than optical light wavelengths. We call these new materials nano-materials because they involve structures that are measured in nano-meters. Optical wavelengths encompass wavelengths from about 800nm for deep red, to 450nm for violet. Nano-materials have structures that may be considerably smaller than this.

Early applications of nano-materials mostly involved random assemblages of small structures, a good example being nano-particle based lithium ion batteries that can withstand much higher charge and discharge rates because of the high active surface areas made possible using nano-particle construction or new ultra-capacitors, capacitors with energy storage capacity rivaling batteries.

A newer class of material which makes use of the ordered arrangement of nanometer scale structures is now making the production of materials with very exotic properties. These materials are referred to as meta-materials because they possess properties that no natural material could possess.

So far the most interesting properties of meta-materials are their optical properties. Because it is possible to create structures that are much smaller than visible light, materials can be made that appear homogeneous to the incident radiation but have objects that appear to the incident radiation as artificial atoms with very unusual properties.

Materials made up of a series of harmonically coupled resonators can exhibit a negative index of refraction, they can cause light to bend the “wrong way”. With these materials it is possible to make a flat lens. What is more, it is possible to create a lens that exhibits super-resolution, the ability to resolve features that are smaller than the wavelength of the illuminating light.

Another feature of lenses created from these materials is that they do not have an axis like a conventional curved lens and as a result they can have an unlimited depth of field. This also has significant implications for photo lithography because presently when you expose a silicon wafer, near the center the image is sharp but it becomes increasingly blurry near the edges and so for example a wafer of CPU’s, those nearest the center will be the highest quality, and defects and quality decrease as you get to the edge. With these new lenses it will be possible for all of the wafer to be exposed with correct focus.

I believe we’re just seeing the tip of the iceberg and more exciting developments can be expected.


I am uncomfortable with the plans to attempt to create black holes in particle accelerators. It is believed, that if created, they will be safe because they will rapidly evaporate via Hawking radiation.

The idea behind Hawking radiation is basically this, at the event horizon pairs of virtual particles will pop into existence such that one goes inside the event horizon while the other goes out. Because the two can not re-unite within the time limit imposed by the Heisenberg uncertainty principle, the virtual particles become real, the one outside the horizon escapes and the theory has it that the black hole decreases in mass by a corresponding amount.

Now I do understand the argument, that the black hole has to decrease in mass in order for the conservation of mass to hold true, but I don’t understand how a virtual particle outside the event horizon becomes real with mass, and the one inside subtracts from the mass of the black hole.

Given that this theory has never been tested and it seems somewhat dicey at best, it seems less than wise to gamble the entire existence of our planet and everybody on it, on this not happening.

If Hawking radiation does not manifest, but black holes do, then instead of evaporating, the black hole will suck up any particle within it’s gravitational grasp, which for the first few nanoseconds might be few, but with every particle it sucks up it’s mass, and thus it’s gravitational pull, will increase, and very shortly thereafter we’ll have a tiny black hole orbiting the Sun where the Earth and every living thing upon it a few seconds earlier, previously was.

Sometimes I wonder if alien versions of this experiment aren’t the reason the SETI radio dial is so dark. Actually though, I know it’s not. The SETI protocol is designed in such a way that it is absolutely impossible to detect and confirm the presence of an alien radio signal unless that signal is intentionally beamed at the earth for several days continuously.

This is so because SETI protocol requires the signal being received repeatedly, but the distances involved are such that even with enormous power, a signal transmitted by a distant civilization will only be received here on earth if by chance a large directional antenna on their planet is aimed directly at a large directional antenna on our planet which is aimed directly at them.

Because of the mutual spin of both planets, the mutual orbits of both planets around their parent star, the motion of the stars within the galaxy relative to each other, there is zero chance of this happening accidentally. So the fact that we have no confirmed radio signals from extraterrestrial signals is no real surprise and doesn’t rule out the existence of those civilizations.

So maybe other civilizations have survived the black hole experiment, or maybe their civilizations wisely told their scientists, if you want to try this go try it on an uninhabited planet in the outer reaches of the solar system, not on our home planet.