It may not help you tie your shoe but that little plastic tip keeps the rest of the shoelace, the shoe string from unraveling into weak and useless threads.
If you are at home trying to decide where to go for dinner, however, the knowledge component may prevail, and you decide to go where you can eat a healthier meal.
The major components of our energy systems, such as fuel production, refining, electrical generation and distribution, are costly installation that have lengthy life span.
On Friday crude traded in negative territory throughout the day as some traders decided it was safer to book profits after a 3 days rally ahead of weekend.