Google is honoring Gregor Mendel today-
Gregor Johann Mendel (July 20, 1822 – January 6, 1884) was a Czech-German Augustinian friar and scientist, who gained posthumous fame as the figurehead of the new science of genetics for his study of the inheritance of certain traits in pea plants. Mendel showed that the inheritance of these traits follows particular laws, which were later named after him. The significance of Mendel’s work was not recognized until the turn of the 20th century. The independent rediscovery of these laws formed the foundation of the modern science of genetics.
Category Archives: Google
Google is honoring Gregor Mendel today-
http://www.gaiagi.com/3d-driving-simulator/ is a plugin with Google Earth that allows you to put in a driving trip and see 3D, map, and street view images as you go through the drive. I put a trip in Brazil and took a screen shot during the trip. You should try it out. You can also speed up the trip. The streetview doesn’t load as fast as the rest of the map but it is pretty cool.
X-radiation (composed of X-rays) is a form of electromagnetic radiation. X-rays have awavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3 × 1016 Hz to 3 × 1019 Hz) and energies in the range 120 eV to 120 keV. They are shorter in wavelength than UV rays and longer than gamma rays. In many languages, X-radiation is called Röntgen radiation, after Wilhelm Conrad Röntgen, who is generally credited as their discoverer, and who had named them X-rays to signify an unknown type of radiation.:1–2 Correct spelling of X-ray(s) in the English language includes the variants x-ray(s) and X ray(s). XRAY is used as the phonetic pronunciation for the letter x.
X-rays from about 0.12 to 12 keV (10 to 0.10 nm wavelength) are classified as “soft” X-rays, and from about 12 to 120 keV (0.10 to 0.01 nm wavelength) as “hard” X-rays, due to their penetrating abilities.
Hard X-rays can penetrate solid objects, and their most common use is to take images of the inside of objects in diagnostic radiography and crystallography. As a result, the term X-ray ismetonymically used to refer to a radiographic image produced using this method, in addition to the method itself. By contrast, soft X-rays can hardly be said to penetrate matter at all; for instance, the attenuation length of 600 eV (~ 2 nm) x-rays in water is less than 1 micrometer. X-rays are a form of ionizing radiation, and exposure to them can be a health hazard.
The distinction between X-rays and gamma rays has changed in recent decades. Originally, the electromagnetic radiation emitted by X-ray tubes had a longer wavelength than the radiation emitted by radioactive nuclei (gamma rays). Older literature distinguished between X- and gamma radiation on the basis of wavelength, with radiation shorter than some arbitrary wavelength, such as 10−11 m, defined as gamma rays. However, as shorter wavelength continuous spectrum “X-ray” sources such as linear accelerators and longer wavelength “gamma ray” emitters were discovered, the wavelength bands largely overlapped. The two types of radiation are now usually distinguished by their origin: X-rays are emitted by electrons outside the nucleus, while gamma rays are emitted by the nucleus.
(From Wikipedia’s article, X-rays)
Google’s image for the day
Looks like the plain old Google page got a little less plain. This is what it showed when I opened it this morning
As of today, April Fool’s Day, Google has changed its name to Topeka because Topeka, KS has changed it’s name to Google 🙂
Here is Topeka, the website’s new sign-
Here is a chart from the blog that will teach us how to properly use the word “Topeka”
Click on Topeka’s logo below for a link to Topeka’s official blog on the name change:
Today is 3/14, we are celebrating Pi Day- that crazy number- Pi, is the symbol for the ratio of the circumference of a circle to its diameter or
3.14 etc etc
1 Million digits of pi.
Here is Google’s image