1 hour candles

Measure 30 Minutes and 15 minutes with a 20 Minute Candle

http://digitalpbk.com/interview-questions/candle-measure-time-30-minutes-15-min-20-long Measure 30 Minutes and 15 minutes with a 20 Minute Candle None To measure 30 minutes, first of all light one candle at both the ends, now the time taken by the candle to burn is 10 minute. Then light the second candle and now the time taken would be 20 minute, So you can measure a total time of 30 minutes. To measure 15 minutes, light one candle at one end and one candle at both ends. Now when the candle burns out it would be 10 minute and there would be 10 minutes of candle left in the still ...

Earth Hour March 28th 0830-0930

http://digitalpbk.blogspot.com/2009/03/earth-hour-march-28th-0830-0930.html Earth Hour March 28th 0830-0930 Switch off the lights for one hour from 0830-0930.Its time for us to act and reflect upon. Global Warming vs Earth. ...

Compare Sony Vaio vs Macbook White

http://digitalpbk.com/hardware/compare-sony-vaio-cw-vpccw26fg-versus-vs-apple-macbook-white with 256MB of DDR3 SDRAM shared with main memory USB Ports3 High Speed USB Ports2 High Speed USB Ports Video Output Ports1 HDMI (High Definition Multimedia Input) 1 Analogue RGB, mini D-sub 15 pin x 1 Mini DisplayPort DVI output using Mini DisplayPort to DVI Adapter VGA output using Mini DisplayPort to VGA Adapter Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter supports 30-inch Apple Cinema HD Display (optional) Battery Life2.5 Hours7 Hours Wireless Connectivity Wireless LAN ...

Compare Dell Inspiron Laptop vs Sony Vaio

http://digitalpbk.com/sony-vaio/dell-inspiron-laptop-14r-vs-sony-vaio-vpccw26fg-laptop Dedicated USB Ports 3 High Speed USB Ports 3 High Speed USB Ports ( 2 USB + 1 eSata/USB ) Video Output Ports 1 HDMI (High Definition Multimedia Input) 1 Analogue RGB, mini D-sub 15 pin x 1 1 HDMI (High Definition Multimedia Input) 1 Analogue RGB, mini D-sub 15 pin x 1 Battery Life 2.5 Hours 3 Hours 6 Cell Wireless Connectivity Wireless LAN Type : Integrated Wireless LAN IEEE 802.11a/b/g/n Wireless LAN Data Rate : maximum 11 Mbps (802.11b)/54 Mbps (802.11a/g) 300 Mbps (802.11n ...

How to access realtime google analytics

http://digitalpbk.com/google-analytics/how-to-access-google-analytics-realtime How to access realtime google analytics Steps to access google analytics realtime from your google analytics account Google has launched realtime analytics to Google Analytics product. You can see in near realtime how many people are currently active on your site. Realtime analytics also shows the keywords, referring URLs and visitor locations on a map that are updated realtime. Earlier analytics data used to lag by around 3 - 4 hours, Google has made a significant achievement in getting ...

Edge Detection on Images

http://digitalpbk.blogspot.com/2009/02/edge-detection-images-sobel-prewitt.html Edge Detection on Images IntroThe following images show the result of applying various edge detection algorithms on this image.Original ImagePrewitt-1 -1 -10 0 01 1 1Sobel-1 -2 -10 0 01 2 1Laplacian 1-1 -1 -1-1 8 -1-1 -1 -1Laplacian 20 -1 0-1 4 -10 -1 0Stochastic0.802 0.836 0 -0.836 -0.8020.845 0.897 0 -0.897 -0.8450.870 1.000 0 -1.000 -0.8700.845 0.897 0 -0.897 -0.8450.802 0.836 0 -0.836 -0.802 ...

10 cricket balls one is heavier or lighter. Find the ball in 3 weighing chances.

http://digitalpbk.com/interview-questions/10-cricket-balls-one-heavier-or-lighter-find-ball-3-weighing-chances 10 cricket balls one is heavier or lighter. Find the ball in 3 weighing chances. None Lets name the balls 0 1 2 3 4 5 6 7 8 9 for convinience. Step 1 : Take 3 balls from this set lets take 0 1 2 and weigh it against 3 4 5. Weighing 1. Step 1.1 : Now suppose both of them are of different weight. It means 6 7 8 9 are all of identical weight and can be used as a reference. Step 1.1.1 : Take the lighter of the set, lets suppose it is 0 1 2 Step 1.1.2 : Weigh 0 1 2 against 6 7 8 (Reference ...

Sum of digits of 1999^1999 Recursively reduced to 1 digit

http://digitalpbk.com/interview-questions/sum-digits-19991999 Sum of digits of 1999^1999 Recursively reduced to 1 digit None Answer: 1 1999^1999 = A pretty big number, so calculating this and doing is not the way. 1999 = 1998 + 1 Now all numbers with (9k+1)^n = 9M+1 Therefore 1999^1999 = 9M+1 Sum of all digits of 9M recursively would be 9 9+1 = 10 on further reduction Sum = 1 Courtesy: Meenakshi :) Interview Questions ...

Tips to Improve your android battery life

http://digitalpbk.com/android/tips-to-save-android-battery-life Tips to Improve your android battery life Tips to extend your android phone battery life Android phones are infamous for eating out the battery soon. My Nexus S battery lasts about 30 - 36 hours after tweaking my phone. It is obvious and a fact that the battery usage is proportional to the number of applications and services you are running. The battery life of android phones can be extended by these tips: Tips to improve battery life Turn off unnecessary Wireless : The number of wireless ...

Select second largest value in a column using SQL

http://digitalpbk.com/interview-questions/select-second-largest-value-column-using-sql Select second largest value in a column using SQL None The answer is pretty simple without jumping over hoops or thinking about taking MAX etc. SELECT value FROM table ORDER BY value DESC LIMIT 1,1 Why LIMIT 1,1 ? Shouldnt it be 2,1 Think again. LIMIT 0,1 is the first record. Interview Questions ...