It’s a three-step process: 1. Setting up of the Excel spreadsheet, 2. Creating an Open Database Connectivity (ODBC) data source, and 3. Connecting to the Excel file from ArcCatalog through OLE DB Provider (Object Linking and Embedding Database Provider). First step: Open your Excel file. Select the ...

It’s very easy to partition or resize your hard drive, which is normally (C):, in Windows 7. Let’s say your hard drive has space of 300 GB, and you want to partition it to make another drive of 100 GB. Click Start, then right click on Computer, then click on Manage. A new Window called ‚Computer Man...

You can download plenty of raw data for your GIS Project or tutorial from the US Geological Survey’s National Map Seamless Server. The server offers data like Elevation Dataset, Land Cover Dataset, High Resolution Orthoimagery etc. Follow the site

http://seamless.usgs.gov/index.php

Have fun.

Sometimes we use some tools more often than others. In that case, it’s a good idea to bookmark them for quick access. It’s easy to bookmark tools in ArcGIS. First let’s set the ‘Bookmarks’ menu on the Main Menu bar. Go to Tools, and click on Customize. The following ‘Customize’ window will open. Cli...

If in ArcMap any of the data layers shows a red exclamation marks next to it (e.g. like the image below), then it means a broken link for that layer, i.e. the data source referenced by the layer is missing for some reasons. http://www.shamskm.com/images/ArcGIS/arcgis-1.jpg However, it’s quite easy t...

The Andromeda Galaxy, also known as M31, is the nearest neighbour of our Milky Way Galaxy. But how far is our ‘nearest neighbour’ from Earth. It’s a distance of 2.5 million light years . One light year is the distance travelled by light in a vacuum in one year. That means in one light year , light t...

According to International Programme on Chemical Safety (IPCS), density of Portland Cement is: 2.7 – 3.2 g/cm³. source: IPCS

Young’s modulus or elastic modulus (E): ≈ 50 GPa. Source: E-modulus

Acknowledgement: Thanks go to Mr. Volker Mintzlaff, Martin-Luther University Halle-Wittenberg.

New studies find that women who survived breast cancer can do something to prevent a second attack. The things needed to do for this are much simpler: Avoid smoking completely. Smoking is dangerous, because it’s cancerous. To keep the weight at normal , and To drink moderately . More about it on Yah...

The Meerkat, a small mammal of mongoose family, live in the Kalahari Desert in Botswana and South Africa.

It’s called ‘Erdmännchen’ in German.

Europe is the only continent on Earth without a desert. However, when we think of deserts, the first thing that comes in our mind is the Great Sahara Desert of Africa. Although most probably it’s out of your mind, but you should also know that Antarctica is a desert too. In all these deserts (e.g. ...

If you are trying to access a website or a specific database and you can’t, rather you get a ‘HTTP: 403 Forbidden’ message, then it means the server that hosts your site or database, is not allowing it for some reasons to access to view the page you want to. This does not mean that your website is d...

It’s pretty easy if you want to change the coordinate system of any of your dataset or feature class (let’s say a shape file, normally ends with a .shp extension) in ArcGIS 9.1 to 9.3. You need to work with ArcToolbox. Go to ‘Arctoolbox’. Then Click on ‘Data Management Tools’, Click on ‘Projections ...

Here you can download Alexa's top 1 million sites list, which alexa claims update daily:

http://www.alexa.com/topsites

Yes saltwater is alkaline. If we think of seawater, which has salinity of 3.5% (means 1 Kg seawater has 35 grams of dissolved salts), has pH more than 7.0. The main reason of alkaline pH of seawater is the presense of bicarbonates among the dissolved salts. So if the saltwater would have sufficient ...

1 millidarcy is one-thousandth of a darcy (1 mD = 0.001 darcy). Darcy is the unit of permeability commonly used in oil and water reservoir to express the ability of fluid to flow through a porous media (let’s say a sandstone reservoir for gas). 1 darcy will require that the 1. fluid has a viscosity ...