28 Sept 2013

humming bird new google update

Google updates search engines humming bird




Google is a master in searching not even many search engines can level to google,in upcoming days because  we know how google works and other search engines work.

Recently they updated their algorithm for google.
which is known as humming bird. humming bird can now reveal any search which is more complex,however the search words are larger,Longer.

This is their major update done by google after a long 3 years.

As we know they are apps for android,i os such as siri etc
these apps convert what you speak to text and results are displayed.

We see mic button in google  search where we could  search by speaking.
 This is a complex task to yield better result because its faster than  search engine,complex to understand and what  the mind thinks.

so they are many smart  phones running and lot of traffic increasing every day searching using speaking
so they need to update it to smarter search.

so it is mainly focused on intelligent search,and relation between words but not on index.

so it is much easier,quicker than their before update which only based on only indexing words.

we have to see what wonders this able to create in optimizing results.

27 Sept 2013

digital compass

Digital compass



Things we need to build a compass

1. ic 7805 used as 5v regulator
2.leds
3.9v battery
4.dinsmore 1490 works on priciple of hall effect it is a sensor


It detects the earth magnetic field using dimnsore 1490 electronic compass.

sensor has 12 pins which are arranged in to four sets of three. pins marked 1 are connected to the positive (+5V). pins marked 2 are tied together and connected to the ground. The pins marked 3 are the output pins. Each output pin is equivalent to the open collected of an NPN transistor and can sink up to 20mA. An LED is connected between the positive (+5V) and each of the output pin. The 1K resistor will limit the LED current to 5mA.The direction can be identified by interpreting the combination of LEDs glowing. A typical 5V regulator using IC 7805 is used to produce 5V DC from the 9V battery for powering the circuit.

digital compass sequence