How to compute the solar zenith angle

I wanted to solve for the solar zenith angle and tried to search online on how to do it. It says that the solar zenith angle is the angle of sun away from vertical. Or it can be computed using the formula:

Solar zenith angle = 90 (degrees) - sun angle (angle above horizon)

One site has this equation:

Sample letter of intent and how to write one

How will you write a letter of intent when you wish to study in a university or apply for an internship? Simple. Just remember few key points: the career field you are interested in, state why you want to study/work in (company name), talk about your personal strengths and skills related to the internship field/study program, mention your skills, talents, work and life experience, languages, computer,

How to print password protected PDF documents

Question: How could I open or print or read password-protected PDF files?

This isn't cheating, I suppose. I just found out that password protected PDF documents/files could actually be unlocked or the password could be cracked. Stupid me. With all the blogging I do everyday, how could I not think of it?

How to prepare the best slide presentation

I know how to prepare the best Powerpoint (PPT) slide presentation having attended a lot of conferences in the Philippines and abroad. But, on a second thought, maybe I don't. I need to learn more.

Recently, I saw slides from presenters that won't even pass the most common requirement: readability. I think there was a mistake somewhere when the slides were graded highest and complimented profusely just because of the complex animations and colors.

How to compress PowerPoint presentations

Make you been wondering if your stupendous PowerPoint presentations could be closed into smaller files without sacrificing level? This has been a problem for some people who impoverishment to direct PowerPoint (PPT) files via netmail.

There is a answer to this. PPTminimizer agency apace compresses your elephantine PowerPoint Presentations to a filler that is manipulable and can be easily sent as