free customized key chain
In radians and hours,
minute hand angle (t) = fPart(t)*2pi
hour hand angle (t) = ( iPart(t) mod 12 ) / 12 * 2pi + fPart(t) * 2pi / 12
angle difference (t) = abs(minute hand angle (t) – hour hand angle (t))
acute angle (t) = min(angle difference (t), 2pi – angle difference (t))
Chugs along on a Ti-84 pretty slowly. Spikes every 12/11 hours at pi radians. After 12 hours it has cycled exactly 11 times.
Lego Assets
Cash
$450 in bills and coins.
Gold
I have four 2x4x1.2 stud solid gold blocks plus 4 gold bars.
I’m counting 1 stud as the lengthwise measurement. 1 vertical stud is 1.2 studs.
Assuming 1 minifigure ( 4.17 studs tall) is 1.8 scale meters. That makes the solid gold blocks .864 x 1.728 x .5184 meters^3 or .774 meters^3 each.
4 x .774 meters^3 = 3.096 meter^3 of gold.
Wikipedia says gold has a density of 19.30 g / cm^3 which makes 59,752,800 g.
Wikipedia says the standard gold bar held as gold reserves by central banks and traded among bullion dealer is the 400-troy-ounce (12.4 kg or 438.9 ounces) Good Delivery gold bar.
4 gold bars makes 4×12.4 kg or 49600 g.
Total that’s 59,802,400 g of gold.
Wolfram Alpha says 1 g of gold is worth $56.63.
So my gold blocks and bars are worth $3,386,609,912 or just under $3.4 billion.
I also have a mesoamerican gold plate thing. I’m going to have to research how to value that.
Silver
I have one 2x4x1.2 stud solid silver block.
Using the previous calculations that’s .774 meters^3 of silver.
Wikipedia says gold has a density of 9.320 g / cm^3 which makes 7,213,680 g.
Wolfram Alpha says 1 g of gold is worth $1.26.
My silver block is worth $9,089,237.
Jewels
Many jewels including rubies, sapphires and emeralds. I need to research how to value them.
Quite simple to do once you get the hang of it.
1.
We’ll start by opening the image we want to edit in Gimp. I’m Using version 2.6.8
2.
The image is sitting on a background layer currently, which means we can’t make any transparencies on it. This background layer must be deleted and a new layer must be created with the same content. To do this, select all of the image (CTRL + A) and copy it (CTRL + C). Open the Layers Dialog (CTRL + L) and delete the layer by clicking on it and clicking the trash can at the bottom of the dialog box. To get the image on a new layer, create a new layer Layer>New Layer and hit OK. Paste the image back in (CTRL + V). After it is pasted in, the image is on a floating layer. This floating layer isn’t attached to anything until it is anchored to a layer. To anchor it either click the anchor icon at the bottom of the layers dialog or select a selection tool such as Rectangle Select and click outside the image. You should now have a layer that looks exactly like how you started. It looks like nothing happened, but all that was necessary.
3.
Now the white area must be selected and then deleted. Select the Fuzzy Select Tool (U) and click the area that should be transparent. A moving dotted line should appear. Delete this area (Delete key). If all the background was one space, skip the next step.
4.
If some background areas are surrounded, they’ll need to be selected and deleted as well. With the Fuzzy Select Tool still active, click on other parts of the background and delete them. If you delete any part by accident, it can be undune (CTRL + Z)
5.
Most importantly, save your image File>Save As with a file type that can hold transparency, such as .png or .gif . I usually use .png and ignore all settings, hitting ok or save for any dialog that pops up.
iPod Size by Time
Maximum iPod Storage
I haven’t posted anything lately, so I thought I’d create an interesting graph and try out GraphJam all at the same time! I had to curve the y-axis to keep it compact.
Joymaker part 2
- Access to basic computing power, for money management etc.
In 1623, Wilhelm Schickard built the “Calculating Clock,” which may have been the first mechanical calculator. Then in 1643, French philosopher Blaise Pascal invented the calculation device later known as the Pascaline. German mathematician and philosopher Gottfried Wilhelm Leibniz completed the Stepped Reckoner 1694.Mechanical calculators reached the top of their popularity in usage between 1900 and 1960.
In 1957, IBM, released the first commercial all-transistor calculator, the IBM 608. It was valued at $80,000, the average yearly income of an attorney. Computers, even if they were the size of a room, didn’t start appearing until the 40s and 50s. Read that again.Computers, even if they were the size of a room, didn’t start appearing until the 40s and 50s. To help you out, World War II occurred between 1939 ans 1945, which means that most if not all calculations for ships, vehicles, aircraft, artillery, rocketry, small arms, and biological,chemical and atomic weapons relied entirely on human computers. The word ‘computer,’ from the mid 17th century till the 1930s, literally meant “one who computes”: a person performing mathematical calculations. Continue reading ‘Joymaker part 2′
My favorite Firefox Add-ons
If you haven’t gotten on the Firefox bandwagon yet, hop over to Mozilla.com and download the latest version of one fo the internet’s fastest growing web browsers.
One of my favorite parts about Firefox is the customization that comes along with it. The community has embraced this and created countless extensions for Firefox. Here are the ones I use weekly if not daily:
Adblock Plus by Wladimir Palant I’m always shocked when I see a plain old image ad these days. I sit and stare at it for a while and try to convince myself that it’s just part of the content of the website. It looks back at me and tries to get me to do something, buy something, try something. Nope, I won’t do it. Just right click on any image, and you’ll never see it again. Built in is a gigantic list of ads that come blocked already. Be ad free in just a few sweet moments.
All-in-One Sidebar by Ingo Wennemaring The navigation toolbar at the top of my screen, with tabs, is about 55 pixels high. 55 pixels. How can I pull off such a compact toolbar? First, move all your buttons in line with the File-Edit-View-… bar by right clicking on the toolbar, hitting customize and dragging the buttons around. Second, get the All-in-One Sidebar. It can be set to behave however you like it but I have it set to pop out when my cursor touches the left side of my browser. It slides out and lest me quickly view downloads, history, bookmarks, and many other features. It also works as a button repository. You can place unused buttons over there and only use them when you want to. Continue reading ‘My favorite Firefox Add-ons’
