Monthly Archives: May 2018

Science Experiment How To Make Invisible Ink

Invisible ink has been used by spies and secret lovers alike for centuries to transmit hidden messages to their partners. Invisible ink isn’t just something you see in James Bond movies; hundreds of liquids, from fruit juices to household liquids, to specially formulated chemicals, can be used as invisible ink. In this science experiment, become a master of “steganography” by making your own invisible ink from baking soda and send secret messages to your friends:

WHAT YOU NEED:

“Purple grape juice
“Baking soda
“Tap water
“Cotton swab
“White writing paper

HOW TO PROCEED:

1.Thoroughly mix equal parts tap water and baking soda powder in a container until dissolved.
2.Use a cotton swab or fine paintbrush to write a message onto the white writing paper, using the baking soda and water solution as invisible ‘ink’. Make sure to dip the swab into the “ink” often so that the recipient can read the message with ease.
3.Allow the “ink” to dry out thoroughly until the writing becomes completely invisible. Your secret message is now ready to be delivered to the intended recipient.
4.One way for the recipient to read the message is to hold the paper up to a heat source, such as a light bulb, hot iron or it can even be placed in an oven. The baking soda will cause the writing in the paper to turn brown to enable the recipient to read the message!
5.A second method to read the message is to paint over the paper with purple grape juice. The message will appear in a different colour!

This science experiment works because substances such as vinegar or baking soda are either mildly acidic or alkaline, and such an acid or base weakens paper. The base from the baking soda remains in the paper after the water has evaporated and the paper has dried. When the paper is then held near a heat source such as a light bulb or hot iron, the alkaline parts of the paper burn or turn brown before the rest of the paper does, revealing the message written on the paper!

If you are using the grape juice method to reveal the message, the baking soda and grape juice react with each other in an acid-base reaction, producing a colour change in the paper to enable the recipient to read the secret message. Grape juice concentrate results in a more visible colour change than regular grape juice. There are many other household liquids that can be used to make invisible ink. Using the heat method, you can also use white wine, vinegar, apple juice, and even milk!

Mixed Integer Programming

An Integer Programming problem is a mathematical optimization problem of which some or all of the variables are limited to be integral numbers. In a lot of settings the term Integer Programming refers to Integer Linear Programming also known as mixed integer programming. Integer programming is NP-hard. A special case is the 0-1 integer linear programming, in which the unknown values are binary. This is one of the 21 NP-complete problems of Karp.

In linear programming problems, all the variables are real numbers. In problems constrains and the function remain linear, but some or all of the variables are integers. So while linear programming has continuous variables, Integer programming has discrete (integer) variables and Binary Integer programming problems have binary variables. Mixed Integer programming problems have discrete and continuous variables, examples are numbers, 0/1 decisions. Non-linear conditions can be formulated as linear. (if-then conditions) Integer problems are much harder to solve than continuous problems. Discrete problems are often NP-complete. (no polygonal algorithm) The amount of solutions is limited in most cases, but limited can still be a large number.

Some examples of Integer Programming problems are: designing distribution networks, transportation planning, determination of series size in production, shift-schedules, frequency assignment in telecommunication, gate distribution in the aviation industry and determining the consistency of software releases.

To avoid any confusion, the simplex method, which can be used for normal linear programming problems, is not enough for solving integer linear programming problems. There are also no dual integer linear programming models and there are no sensitivity analyses that can be applied to integer linear programming models. In short; most of the common methods for solving linear programming problems, cannot be applied to integer programming.

A concrete example of an integer programming problem is the knapsack problem. In the knapsack problem there is a bag that can carry a maximum amount of kilograms. Then there are a few items that you want to fit in the bag. Every item has its own weight and its own value. The objective here is to a few items in the bag with the highest possible value possible. The decision problem form of the knapsack problem lies in the question: Can a value of at least X be achieved without exceeding the weight Y. The knapsack problem is a fairly simple and imaginative example of the knapsack problem. Most real life problems are far more complex.

For more information regarding , please visit

Degrees in Computer Science

Degrees in computer science prepare students for some of the highest paying jobs that are most in demand. This educational path isnt for just anyonethe coursework will often be tough and the jobs you qualify for after getting your degree will be challenging. But if you have a knack for computer technology and the passion to continue working even when your studies get difficult, this could be the ideal type of program for you. There are many computer science programs to choose from at traditional colleges, online universities and technical/vocational schools. Whatever option you choose there are a few things you can expect to encounter during your education.

If you want a wide range of career options, youll want to earn a bachelors degree in computer science rather than a certificate, diploma or associates degree. Before you embark on this lengthy educational path its important to understand what youre getting into. There will be significant math requirements including calculus and trigonometry classes, for starters, so if youre not good with math, then this might not be the degree choice for you. You will also need to complete general education courses in subjects such as English, history, biology and humanities before you can complete the BS requirements of most accredited colleges.

Once you are in the upper division of your computer science degree program you will take your core classes, including computer theory classes that cover basic computer concepts, history and theory. You will take several computer language and programming courses during your degree program; in fact, these lab and project-rich courses will make up the bulk of your computer science education. Its crucial that you devote yourself to learning the programming languages such as C#, Java, PHP and others. You may also need to take some data theory and/or database classes, which may be lab-based, project-rich or lecture-style.

Earning degrees in computer science really pays off in this day and age. You can expect to begin working in the field not long after earning your degree with a starting salary upwards of $50,000, and the potential to earn much more with experience and merit.

Institutions offering quality programs in Computer Science include Argosy University, DeVry University, ITT Technical Institute and Kaplan College.

Find the perfect Computer School or Computer College today and start your path to a rewarding career.

Tips For Setting Up The Best Internet Business

Starting the best internet business is an easy task to accomplish if one follows the correct set of rules. Many affiliate programs are available on web that offer great income as well as a successful business venture. One must have the required knowledge before thinking to be an owner of a successful one.

The best way to succeed with a business plan is by selecting one narrow niche that makes it possible for the business owner to make his business some strong brand. There are a several set of tips and tricks that are needed to be followed and kept in mind when planning and looking after an internet business.

1.One should stick to the plan chosen:
After creating a business plan, one needs to stick to it for a considerable large amount of time for making it work. Best internet business title is to be earned; hence it requires some time and dedication to make one work.

2.Regular working is required:
There is nothing like an automated internet business, which can run on its own. The business owner needs to work on his business on constant basis in order to make it work. Businesses like marketing of search engines also require a huge amount of work. Therefore one needs to take care that his business keeps working on a constant pace. Not each day but regularly.

3.Constant updating needed to be done:
The promotions associated with the best internet business needs certain amount of updating from time to time. This is because the advertisements should always appear fresh and appealing to the customers. However, the website or the blog should not be changed to a big extent. Just the promotions!

4.Old is gold:
Many a times when working on a business based on an old concept, one might think of starting a new business with new concept. But, ends in losing the prior one, as well as ruin the new project as well. These new ideas may sound assuming for the first time but are not so. One should stick to the old business concept as it will surely have the potential of being the best internet business.

5.Maintain your brand:
A brand’s name is the most valuable asset for its owner. Hence is needed to be cared for. Every work done online effects the brand’s reputation. The business holder hence needs to take every step keeping his brand’s image in mind.

5 Uses For Options

Read These Great Hairstyle Guides

If you are bored with your hair and if you would ant to try out something new, you have come to the right place today because we are going to be talking about new hairstyles that you can try out. If you have been using the same hairstyle for years and years now and you really want a change, you should really go and try something new. You may really want to style your hair in a way that will make you look really pretty for an event that you are going to and if you do not know what you can do to your hair, you should keep on reading down below as we are going to tell you what you can do with it. Today, we are going to be talking about some hairstyles that you can try out on your very own hair so stick around to find out what these hairstyles are.

The fist hairstyle that we are going to be looking at today is the braid which is a really old hairstyle but a very elegant one indeed. You may never have tried braiding your hair before because you do not know how to do it or maybe you just did not have the time to sit down and have someone do a braid for you. If you do not have long hair, you may think that you can not do a braid because your hair is too short but you actually still can because there is such a thing as french braiding which starts at the top of your head so you can still get to braid your hair even though your hair is not that long. Do not worry about your hair being too short because there is a type of hair style called the french braid where they will really start the braiding at the top of your head all the way down to the length of your hair. Maybe you know how to braid your own hair and if you can, you should really try getting them braided for your next outing as this can be a really cool hairstyle indeed.

Another hairstyle that a lot of girls really love is the bun hairstyle. While this may not seem like a very fancy hairstyle, it is very useful and it can also look really pretty as well. If you are someone who really wants to try out the bun, you can easily do it as it is not hard at all and you will have no trouble working it well. You can also change up the bun and make it more creative or add accessories to your hair to make your hairstyle look really amazing indeed.

You Can Not Run Microsoft Exchange Server Services After Event Id 7011

Is your Microsoft Exchange Server 2000 system behaving unusually? Are you unable to start various Exchange Server services? Is your EDB (Exchange Server Database) inaccessible? Such behavior indicate Exchange Server database corruption, which may occur due to a wide range of reasons, ranging from simple user mistake to catastrophic system crash. It leads to critical data loss and needs Exchange Recovery to access your mission critical data.

Consider,
A) You get Event ID 7011 while working on Exchange Server.

B) The SMTP (Simple Mail Transfer Protocol) service on Exchange Server computer stops responding or terminates improperly.

C) System freezes when you run – IISADMIN, W3SVC, IMAP4SVC, RESVC, and POP3SVC services. You need to restart your computer when it occurs.

D) The services fail to stop when you try to stop and restart them.

E) You may encounter error messages, similar to the followings:

i. Timeout (30000 milliseconds) waiting for a transaction response from the RESVC service.
ii. Timeout (30000 milliseconds) waiting for a transaction response from the IISADMIN service.
iii. Timeout (30000 milliseconds) waiting for a transaction response from the W3SVC service.
This behavior of Microsoft Exchange Server renders your valuable data inaccessible. In order to get your Exchange Server data back, you need to first identify the root cause of this problem and then fix it with Microsoft Exchange Recovery.

Grounds of the issue

You may come across this behavior of Microsoft Exchange Server due to any of the below reasons:

1. A message is received by the MS Exchange Server 2000 system, which has a damaged time stamp.

2. The message has an invalid FILETIME attribute.

3. Exchange Server database is corrupted due virus infection, improper system shutdown, and application crash situations.

Resolution

Microsoft has a hotfix for this problem. You can download it from Microsoft’s website and install it on your MS Exchange Server computer. However, it can not fix the database corruption problem and the database remains inaccessible. In order to solve database corruption, Exchange Server Recovery is needed.

You can easily repair and restore damaged EDB file using Exchange Recovery Software. They are powerful enough to systematically scan the whole database and extract all damaged mailboxes from it. They extracts all the mailbox objects such as emails, notes, contacts, tasks, calendar entries, and more.

Exchange Server Recovery is an easy-to-use and safe exchange database recovery application for insured recovery of damaged database. The software works well with Microsoft Exchange Server 2007, 2003, 2000, and 5.5. It also recovers deleted Exchange Server mailboxes.

Resolving unable To Display Folder Error While Connecting To Exchange Server

Under some circumstances, you can not access Microsoft Exchange Server mailbox using Microsoft Outlook. Such circumstances may occur due to permission issues, corrupt OST file, or synchronization problems. In all such cases, OST to PST conversion can not take place and thus the OST file can not be updated. At this point of time, the OST file becomes orphaned and unusable. In such circumstances, manual conversion of the OST file becomes essential.

In a practical scenario, you may come across the below symptom when you attempt to access Microsoft Exchange Server 2003 or 2000 mailbox using Microsoft Outlook:
1)You can’t log on to MS Exchange Server and access the mailbox. When you attempt to access your mailbox, you get either of the following errors:
a)Unable to display the folder. You do not have appropriate permission to perform this operation. You do not have sufficient permission to perform this operation on this object.
b)Unable to display the folder. Microsoft Office Outlook could not access the specified folder location. The operation failed.

After this behavior of Microsoft Outlook, synchronization process gets halted and OST PST conversion stops halfway.

Grounds of the issue:

The problem may take place if Everyone group isn’t assigned Create named properties in the information store privileges to DC=Domain, CN=Configuration, CN=Services, DC=com, CN=Organization, and CN=Microsoft Exchange objects in Active Directory.

The issue may also occur if the OST file is damaged or there are some synchronization issues with Microsoft Exchange Server and Microsoft Outlook. In all such cases, you are required to work around the problem as soon as possible to get your valuable data back.

Solution

In order to sort out this problem, you need to assign Create named properties in the information store privileges to Everyone group. If you deploy ADSI Edit snap-in, LDP utility, or other LDAP v3 client, and incorrectly alter the Active Directory objects’ attributes, you may come across critical problems.

The an excellent way to sort out such problems is to use third-party applications to . These software are specifically designed to carry out in-depth scan of entire OST file and convert all its unusable objects to PST. They Convert OST file in a quick, easy, and safe way.

Stellar Phoenix Mailbox Exchange Desktop is the most advanced utility to convert orphaned OST file into usable PST file. The software with interactive user interface and read-only conduct, works well with Microsoft Outlook 2007, 2003, 2002, and 2000. It effectively converts all OST file objects, such as emails, notes, contacts, tasks, and more.

Storage server Size shrinking by the day

Storage server is no more restricted to big organizations but has come into our homes as well. A server is useful in any work group environment that have multiple users and where data needs to be shared among various users. Server helps in providing backup support as the data is centralized. The cost of maintaining and retrieving data is easy with a centralized server. A robust server can ensure high reliability and can improve the performance in a work atmosphere. All information can be shared among all network nodes thereby making it possible to free up space on the personal computer for faster access.

A storage server can hold a number of hard drives that can be used to store innumerable amount of data. Depending on the requirement of the usage server capacity can be decided. Finding 1 terabyte storage was a mere fiction a few years back. But now 1TB has become a common phenomenon where people use them even for home networking. Go for a higher capacity only if you have the requirement. Else there is always an option to add on to the existing system for more space. Higher the bandwidth, better the performance! Therefore it is important to check out the bandwidth details in advance before opting for a server.

While picking a storage server it is important to evaluate your requirements beforehand. If you fail to do so you will realize that you have to keep upgrading your server quite often. This could be an additional burden on the company. The safe bet would be to buy a server that would gobble up as much data you want it to. Do not worry about the technology you can keeping adding space to your existing server comfortably. Most server manufacturers have taken care to prepare for add-ons incase your future requirements rises. Without any apprehension you can go for double your data storage requirement as it is sure to be utilized in the future.

Servers are helpful especially for high volume data. Particularly if you have gigabytes of data there is no doubt that they can be tucked away safely for sharing. It is difficult to copy high volume data on USB flash drives or external hard drives for this a storage server would be apt. Moving data onto the storage and retrieving them whenever required is a popular choice. Servers are no more large and cumbersome to look at with wires hanging all over. These days servers have become compact and sleek and does not take in large amount of room space. The technological advancement has seen large data being stored on compact servers. The cost of servers also has come down drastically with competition rising by the day.

Habu.tv Is Live! Real American Tv Programming Anywhere!

This is a follow-up story on my first report about Habu.TV last year in July 2008. Talking with Mr. Clay Cook, the CEO/Chairman of Vision One Global Communications, a full-service communications provider to the the large contingent of US Military and Expats living in Japan, says the road has not been without it’s “pot-holes”. “We have been through no less than 3 different providers and potential providers of the IPTV services we were searching for to find the absolute finest quality, reliability, and user-friendly solutionfor our Constituents here.”, says Clay. “One might think that it would be easy to find such a solution…but marrying 2 or 3parties to ensure that the Customer receives the absolute bestservice for the best price…and meets all the other criteria mentioned…has been a long and windy road.”
“The great news for the market here in Asia is that now we have found it…and have launched. With over 250 channels of quality US TV programming streamed directly to anywhere in the world utilizing SlingBox technology with an actual set-top box solution to your TV and or computer, you can now watch all of your favorite TV shows, dramas, pro-sports, college sports, movies, news, entertainment. Our channel line-up includes: Every HBO, Showtime, Cinemax, Netflix, ESPN, FOX, ABC, NBC, CBS, BET, MTV, digital music radio with every genre, Sci-FI, Discovery, Disney, History, Nat Geo, and so much more!”
I asked Mr. Cook what separates your service from the rest of the pack of newly formed IPTV services being offered? “Well, simply put, we have the entire solution, not only the SlingBox streaming to your computer, but we offer the SlingCatcher set-top box decoder using SlingMedia’s advanced IPTV network with their proprietary compression that allows for higher quality streaming with lower bandwidth requirements on the Client’s viewing end; which is very appealing to our Clients in Asian countries with challenged bandwidth infrastructures.” Says Mr. Cook.
Japan, Korea, Hong Kong, and Singapore are all “pretty good”, says Clay. “However, there are many Expats and US Government employees living in say Thailand and Phillippines that want our services; and this provides them with the ability to watch their TV as well. All they have to do to test their bandwidth is click for a free demo and download the software to their computer and see for themselves…very easy.”
“We are excited about approaching the various US Expat and Government agencies in the region and actually showing them working demos with the set-top boxes. We believe that when they see how good the picture and reliability of the stream with the ability to record or time-shift their programming and watch it later on our hosted DVR’s, it will be an easy choice.” says Clay.
Indeed I have checked out the site and it is up and running. Just go to and see for yourself what you might be missing.

9 Lessons Learned: Trends

Important Factors to Consider when Purchasing Clothes for Oneself

When looking at the clothing aspect, you get to see that most people are conscious about it as they want to look great and elegant. This article focuses on the factors that you need to have in mind when buying and selecting clothes.

The fact that some colors are referred to as feminine and others masculine makes color an important aspect to consider. Additionally, depending on the body type that you are endowed with, you will find that the colors are a major consideration as some would make you look good and others otherwise.

Even when you are beautiful and all handsome, there is that part of your body that you consider as a flaw and may get you insecurity. Endeavor to buy the clothes that show you to the world as flawless but still hide your flawing parts.

When looking at clothes that bear lines, it is important for you to get the ones that are in line with your body. If you have a body that is plump and short, then you need to invest in clothes that have lines running from top to bottom so that you seem taller and slimmer while those who are tall and skinny need to be in those that have diagonal and horizontal lines to seem shorter and plumper.

Since you are the buyer in this question, you need to ensure that you look into the texture of the clothes so that they feel soft and comfortable to you. You definitely do not want to be in a dress or shirt that you have to scratch yourself once or twice a minute due to the discomfort.

As the buyer, it is important for you to ensure that you look into the quality of the clothes alongside the cost so that it is affordable, reasonable as well as offering you value for your money. In addition to this, the buyer needs to know that prices are not always tied to the quality which means that a high price will not guarantee you high quality and vice versa.

It is your responsibility to ensure that the kind of clothes that you buy are the ones that gladden your heart and make you feel awesome about yourself thus making you happy. When you are dressed in what you love and adore, it becomes easy for you to have high levels of self-confidence thus making you productive altogether.