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Why are pictures from my movies looking so bad?

Alexis Wilke's picture

Video versus Photo

Have you ever tried to film a movie to later find out that you just couldn't use a single one of the many images as a nice photo on your Snap! Website?

Newton's Cradle showing the law of conservation of momentum.
Newton's Cradle

If you still wonder why the quality of a video image is so poor in comparison to just taking a still picture, then this article will most certainly help you understand the several reason behind the problem.

First of all, know that there are now many different types of video cameras available and each runs with a different software. Each brand created the best version ever, yet it really results in each brand having a set of features better adapted to a specific situation. This being said, it actually would not be possible to just merge all the software and get the best of all worlds! The same properties as found in physics apply here: when you gain on one side, another has to give way.

What happens when you have a Firewall

Alexis Wilke's picture

The newest MS-Windows Operating Systems have come with a built-in Firewall. This was very important from the start of the Internet, but since the year 2000 or so the need grew faster and faster. Windows XP is the first system that automatically turned on the Firewall. Of course, your Snap! Website is also protected by a firewall.

What does that Firewall really do?!

The firewall simply blocks connections from any external networks (by default you may have some features such as the Remote Assistance and Network Diagnostics turned on1

  • 1. Note that you should probably turn off all exception and

What is RAM? You need it so your computer runs

Alexis Wilke's picture

Memory DrawersAs I mentioned in an early post, I will also teach my readers how computers work. Remember that Snap! Websites needs all of that to work... and I hope to make the information accessible to everyone. Don't forget that you can hover your mouse over abbreviations and acronyms to get their full definition. There is also a link to my Glossary at the bottom of each post.

All computers require some kind of memory to run. A computer that always does exactly the same task may use what we call ROM or Read-Only Memory, although the processor will still make use of RAM or Random Access Memory for its registers. In other words, all computers need to have a certain amount of RAM in order to function.

So, what is RAM?

Abstraction

Programmers view memory in an abstract way: a set of drawers where they can store a number from 0 to 255.

How is your computer remembering your data?

Alexis Wilke's picture
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I have been working with computers since 1980 and in the last 30 years I have seen an incredible evolution and it is still moving forward, quickly.

Computers use several technologies to save your data. I will be talking about the main four that people use today: ROM1, RAM, Hard Drives, and Flash Drives.

  • 1. Notice the underline that appears under acronyms? Those are automatically added by (Small Snap! Logo) Snap! Websites when you install the Glossary feature.