kengr: (Default)
Specifically, computer utilities. I've been doing some long needed cleanup on my ridiculously large collection of images and the like.

This mostly consists of two things. First, checking to see if the source sites (various tuimblr accounts at the moment) are still up, and if there is any content I don't have.

The utility I used to use for that quit working some years back. and no updates or word from the author. Since I needed to do something about this, I finally got around for looking for a replacement. Found one. WF Download. Works even better than the old one did. There is the small issue that it uses a different (and arguably better) naming scheme for the downloaded files.

Which brings us to the *second* issue. Checking for duplicate files in the downloads. Now, way back in the 80s there was a program named Unique Filer. It had the concept of "base folder" and "compare folder". So it could compare all the files in the base (and its subfolders if you wished) against all the files in the compare (again, including subfolders if you wished).

Now it presented a list of the matching files. and you could wade thru them one by one. *or* you could tell it to nuke all the file in the compare folder that matched files in the base folder. Zip done.

It quit working with Windows 7. Maybe because it was very old or maybe because it was a 16 bit program (originally written for Windows 3) and I'm running the 64 bit version of Win 7. In any case no longer workee.

What I use now is Duplicate File Finder, It lets you compare files in a folder or folders and present a list of dupes. Each and every one of which has to be individually deleted...
[delete][enter][down][down] (repeat ad naseum)

*why* has the concept of "base" and "compare" folders been lost?
kengr: (Default)
A "badge" that has a swinging needle meter (or a bar graph LED) labeled "SPOONS".

Either have a hidden knob to adjust the reading, or mauybe find a sensor that semi-reliably tracks your spoon level.

ETA
One labeled "STRESS" would be good too. and likely easy to rig a sensor for. :-)
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All of these are based on Vantablack like materials.

Best would be if we could make "cloth" that acted like vantablack. Zentai suit would effectively be "living shadows". Flowing robe type stuff would give "cloud of darkness"

Less ambitious would be a full face "mask" (say something like a fencing mask) worn with a hooded robe. Tiony holes would let enough light in so you could see well enough to move around. But anybody looking into the hood's opening would just see utter blackness.

That last is probably doable.

Finally, ig we could come up with a coating that'd work (and be safe) on scleral lenses (like contacts, but they cover the entire front of the eyball) you'd have the effect of utter blackness instead of eyes. It'd look like there was just a hole in space where your eyballs should be.

Be *really* spooky if you could do it.
kengr: (Default)
(mostly old time fans will get this)

Ok which one is supposed to be Delos D. Harriman? Jeff Bezos or Richard Branson?
kengr: (Default)


I like the bush!
kengr: (Default)
I've just realized that I forgot a point I was going to make in my last post.

Earth has several moons, but Luna isn't one of them.

Yes, really.
Compare the Terra/Luna pair with any other moon & planet in the solar system, and you find a number of *glaring* differences.

First of all the center of mass of the Terra/Luna pair is *outside* of Earth. Not true for any other planet/moon pair. Well, maybe Pluto/Charon, but that may be another special case like Terra/Luna.

Second and far more telling is that if you plot the orbit of the planet with respect to the sun, and plot the path of the moon on the same plot, for all the other moons (again, with the possible exception of Charon) you'll see that the orbits of the various moons have a number of points where they are falling *away* from the sun. At those points the satellite's orbit is convex with respect to the sun rather than concave.

But you do this with Terra and Luna, and Luna's orbit is always concave with respect to the sun. at the points where it is closer to the sun than Terra, the orbit is flatter, but still concave.

Terra/Luna is a binary planet, *not* a planet and moon.

This has a nuimber of interesting effects. For one, Luna stabilizes Terra's axis. We still get things like precession of the equinoxes and other long term cycles, but they are both longer term and less drastic than they would be without Luna's influence.

Mars doesn't have such stabilizing factor and its axis has flip-floped a lot over the millennia, making it a lot less suitable for life.

Also, Luna has stripped of some of Earth's atmosphere , especially in the early days. This may be a reason we didn't wind up like Venus.

So, binary planets may be a *lot* more favorable to life than other planets. Which reduces the odds of finding life in other star systems, as binary planets in the habitable zone aren't likely. Not impossible, just a lot less likely.


So other habitable worlds are less likely to have huge "moons" in the the sky (much less multiple ones).

If binary planets are *necessary* for life, then that biases things in favor of a huge "moon". But lowers the number of planets suitable for humans (and other, similar lifeforms) a *lot*.

If habitable planets are common, then most won't have the huge "moons".
kengr: (Default)
This prompted by recently seen errors in books.

If you are writing SF involving interstellar travel, you need to know a few things about stellar types.

First off, the "colors" of stars used in descriptions by astronomers are *not* the actual colors. "Red stars" have more red in the spectrum, but are not what normal people would call red.
Read more... )

Next biggie is that you have to consider not just stellar type (OBAFGKM) when deciding where to put a habitable planet, but also "size" (dwarf, giant, etc)
Read more... )

Now we get to orbits. Both planetary and those of moons.
Read more... )
kengr: (Default)
This is inspired by something [personal profile] fayanora sent me

"English" measurements aren't as crazy as you may think.

For example, volume for liquids (including some obsolete measurements).

1 gallon = 2 pottles
1 pottle = 2 quarts
1 quart = 2 pints
1 pint = 2 cups
1 cup = 2 gills
1 gill = 2 jacks
1 jack = 2 fluid ounces
1 fluid ounce = 2 tablespoons
1 tablespoon= 3 teaspoons

And in the US one gallon is *defined* as 231 cubic inches.

On the other hand, weight is a bit odd

1 long ton = 20 hundredweights
1 hundredweight = 4 quarters
1 quarter = 2 cloves
1 clove = 7 pounds

There are many more oddities, but the above will do for now.
kengr: (Default)
Today I received the 16 tb drive I'd ordered to expand my NAS setup. busily copying stuff to irt and doing other setup.

It occured to me that when I was born (1955) there almost certainly wasn't anything remotely cl;ose to 16tb of storage in the entire *world*. Now I can hold it in the palm of my hand.
kengr: (Default)
I've read E E. "Doc" Smith's The Skylark of Space more times than I can remember. I've kicked myself for years at passing up an opportunity to get a first edition.

A while back I bought a cheap collection of Doc Smith stories on Kindle. I've slowly been working my way thru them reading a chapter here and there between reading other things. So far they'll all been things I've read before.

Recently, I hit The Skylark of Space and it turns out to be the *magazine* version (which I believe that first edition I passed up was as well). Turns out to have significant differences from the version I'd read before.

Smith had a co-author (to add in some love interest). Many of the changes are in scenes between Seaton and his fiancee.

But others are not. There are some minor differences in how World Steel is portrayed and the things they get up to. but some significant differences are in the workings of Perkin's Cafe. Such as a telephone setup to make it hard to track goings on (which I don't think would actually work, but still).

A really big one is that World Steel and their operatives have "wireless telephones". Not a major plot point, but they are used well.

I'm only up to the point where DuQuesne and company are planning to kidnap Seaton's fiancee, so there are likely to be other differences to be found.

I'm rather enjoying this look at an old favorite.
kengr: (Default)
Well, new to me anyway.

Doug was upgrading his main server and gave me a deal on the old one.

Started out a a Dell Precision T3500
Intel Xeon CPU, 3.2 GHz, 6 cores
24 gig of RAM
an OK vid card (two DVI ports and an S-video port)
DVD drive
RAID

I'll have to decide which spare drives go in it and and what OS to install.

ps. it's *heavy*, 34 lbs.
kengr: (Default)
I've been seeing this one truck a lot recently due to construction going on across the street. No idea what they do, but the truck is white and has black lettering on the side:
ASPLUNDR

This reminds me of a few other "legendary" local businesses:

HARDER
Mechanical Contractors

think "something that contracts" not "someone who does contract work"

PALM
Abrasive
and Tool
Company

INDUSTRIAL CRATERS
A division of O'Neill Transfer, LTD
kengr: (Default)
I 'm starting with gallon both because it's a defined measurement, but also because I don't have the info for larger measures on hand.

A gallon is legally defined as 231 cubic inches.

1 gallon = 2 pottles = 128 fluid ounces
1 pottle = 2 quarts = 64 fluid ounces
1 quart = 2 pints = 32 fluid ounces
1 pint = 2 cups =16 fluid ounces
1 cup = 2 gills = 8 fluid ounces
1 gill = 2 jacks = 4 fluid ounces
1 jack = 2 tablespoons = 2 fluid ounces
1 tablespoon = 3 teaspoons = 1 fluid ounce
1 teaspoon = 1/3 fluid ounce
kengr: (Default)
There are a bunch of units based on the human body.

Finger: width of a finger, used for drinks mostly these days
Thumb: length of last joint of the thumb. about an inch
Hand: used for height of horses. 4 inches
Span: distance from tip of thumb to tip of little finger with them spread as far apart as possible. about 6 inches
Foot: length of foot
Cubit: from elbow to tip of index finger. 18 inches
Yard. from hand to tip of nose (think of pinching a bit of cloth or rope between thumb and forefinger and stretching out your arm and measure to your nose) 36 inches.
Ell: Same thing except to opposite shoulder about 45 inches
fathom: from one hand to the other with arms stretched. 6 feet
stride: distance between 2 footprints if you are walking normally
pace: 2 strides (distance between two footprints of the *same* foot when walking normally)
mile: originally 1000 paces.
league: 3 miles
kengr: (Default)
I know some of you have heard mention of fun chemicals like chlorine trifluoride (ClF3) and dioxygen diflouride (FOOF).

Well, here are a few more

Chlorine pentafluoride (ClF5)
surprisingly, this is *less* reactive than ClF3. Thought to be because the fluorine atoms are packed tightly enough to interfere with each other when it comes to reacting with things.

Trioxygen difluoride (FOOOF)
*Way* more unstable than FOOF. Also, in storage (at extremely low temps) the liquid tends to recombine to form FOOF and FOOOOF. Yes, that's *four* oxygens in a row. and that last reacts explosively with damn near anything.
kengr: (Default)
Back in the late 60s a local bank was giving away key chains. Pretty ordinary with a big "gold" oval fob with the banks logo on it (It may have been Lincoln Savings & Loan).

I happened to discover something interesting about the fob. It was *para*magnetic. That is, it was attracted by magnets, but only weakly. Very strange.

Whatever the fob was made of it was solid, not plated (I used a file on one edge). It got lost many years ago but I've always wondered just *what* that alloy was.

I'm hoping one of my fellow geeks might know.

Blitzkreig!
(tanks in advance :-)
kengr: (Default)
For some reason a variation on the old Pillsbury jingle keeps popping up in my head.

At first it was just:

Nothing says lovin'
like something from the coven
and [blank] says best

The blank was irritating and finally I came up with "Avesbury" to fit the rhyme.

Now, mind you most of the fictional references to Avesbury that I've encountered were in Cthulhu Mythos stuff. Mind you, "coven" can work in that context so it's maybe acceptable.

Now part of me wants to *write* it. But the rest of me is going "Hell no!"

So I'm throwing it out there from anyone does like writing that kind of thing.
kengr: (Default)
Attention: [personal profile] fayanora
With the latest update, it can now access DW friends data.

This means I will no longer be messing up links or have to do them by hand.

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