Handy notepad in Chrome tab or window

There is nice option to create editable tab on window in Chrome browser with URL like this:
data:text/html, <html contenteditable>

It is possible to save it into the file after pressing CTRL+<S>

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Sky above from freezing cold nights

Nights are long in the Winter, with many clear nights, but with very cold temperatures as well. It looks like Kakslauttanen Arctic Resort in Finland built good solution how to observe beauty of the sky in Winter.

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Bubble tent to look at stars

Hmm, maybe bubble tent is right idea for fidget weather of Minnesota. One could be warm and look at stars, maybe even observe by telescope.

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SVG: Elliptical arc path

Scalable Vector Graphics allows elliptical paths. Here is rendered image, which can help to realize meaning of the parameters. In case below all elipses and circles are have end points [0,0] and [70.71, 70.71]. Second point is on the circle with radius 100. Arc with small “a” means relative dimensions.

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find a files with -maxdepth and -mindepth

Unix utility find allows many arguments. Here is how one can limit searched directories. Arguments -maxdepth and -mindepth should be used first before let’s say -name or -type.

Let’s created four sub directories to investigate how it works:

$ mkdir -p a/b/c/d

$ find a

$ find a -maxdepth 2

$ find a -maxdepth 2 -mindepth 2

$ find a -mindepth 2

See also find a files with mmin

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Eclipse weather

Weather for Solar eclipse on August 21, 2017 across USA determined how people could experience such rare event.

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Eclipse August 21, 2017

Eclipse on August 21, 2017 will be visible in Minnesota only as a partial eclipse. Total eclipse can be visible south of Minnesota, probably good place to go will be places in Nebraska, Kansas or Missouri. Totality will be around 1 PM CDT.
See more at NASA page SE2017Aug21Tgoogle or interactive map.

Next closest opportunity will be on 4 minutes of totality August 4, 2024 in Indianopolis at 2:08 PM CDT.

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Sexagesimal one character digits

Sexagesimal (base 60) is a numeral system with sixty as its base. In some form with help of decimal digits  is used for measuring time, angles, and geographic coordinates. There are no special symbols for it’s digits like in binary system (0,1) or decimal system (0,1,2,3,4,5,6,7,8,9). For certain application, there could be an option to use existing characters from ASCII table and assign them value of sexagesimal digits [0-9A-Za-x]. Value of such digit is monotonically growing, so it possible to use it for ordering and sorting.

Transformation table  could look like this:

0: 0123456789
3: UVWXYZabcd
4: efghijklmn
5: opqrstuvwx

Here are an example transformations from decimal system into such sexagesimal system with it’s digits defined above:
00:00 -> 00, 01:01 -> 11, 05:10 -> 5A, 10:10 -> AA, 12:10 -> CA, 12:30 -> CU, 12:59 -> Cx, 12:33 -> CX, 23:50 -> No, 10:36 -> Aa, 11:59:59 -> Bxx, 18:30:00 -> IU0.

/* Example of JAVA method for n60 0..59 */
public static char sexagesimal_char(int n60) {
   if (n60 < 10) return (char) (48 + n60);//or (‘0’ + n60)
   if (n60 < 36) return (char) (55 + n60);//65-10 or (‘A’ + n60 – 10)
   return (char) (61 + n60);              //97-36 or (‘a’ + n60 – 36)

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Irish Soda Bread

On Saint Patrick’s day I’ve got surprising gift: Irish Soda Bread. It was gone almost immediately. Very tasty, sweet, a little bit crunchy, just fabulous. Bought at Walmart. Here is link to their recipe.


Nonstick cooking spray
2 cups all-purpose flour
1/4 cup granulated sugar
1 1/2 tsp. baking powder
1 tsp. salt
3/4 tsp. baking soda
3 tbsp. unsalted butter, chilled
1 cup lowfat buttermilk
1/2 cup Nestlé® Raisinets® Milk Chocolate-Covered Raisins
1 tbsp. decorating or coarse sugar



  • Preheat oven to 375° F. Spray 8-inch-round cake pan with nonstick cooking spray.
  • Place flour, granulated sugar, baking powder, salt, and baking soda in food processor; pulse to combine (or, combine ingredients in large bowl).
  • Add butter to food processor; pulse until mixture resembles coarse meal (or, cut butter into pieces, add to bowl and use fingertips to rub until coarse meal forms).
  • Add buttermilk to food processor; pulse to combine (or, make well in center of flour mixture, then add buttermilk and stir dry ingredients into milk to blend).
  • Turn dough onto floured surface; gently knead in Raisinets. Form into ball. Place ball in prepared pan (dough will not come to edges of pan). Sprinkle top with decorating sugar.
  • Bake for 40 minutes or until golden brown. Cool in pan on wire rack for 10 minutes; remove to wire rack. Serve warm or at room temperature.
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Romaine lettuce orange juice smoothie

Simple and easy romaine lettuce orange juice smoothie. See pictures below. There are about 225g of lettuce and 335g of orange juice resulting in two glasses of the smoothie.

Good source of information about food is at http://www.ars.usda.gov/ba/bhnrc/ndl including downloadable files.

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