If a police officer directs traffic, you should dip your headlights. Pick a visible position and leave your parking or hazard lights on if you want to park your car for a short time in the dark. When should you use your dipped headlights? The bright lights in your car will not impress other road […]
Jet fans are used to support the flow of air between the supply air and the air zones. They provide motion in regions that have low air speeds. How does a Jet fan work? The impulse principle applies to jet fans. The air is discharged from the fan outlet at a high rate. When this […]
What are the drawbacks to solar tube lighting? Are solar tubes worth it? Solar tubes can be used as an alternative to a natural skylight. While you won’t get a view of the sky like you would with a skylights, they are usually a lower cost product that is easy to install and reliable. Do […]
The longest railway tunnel in the country is 11 215 m long. The T-80 runs through the heart of the Himalayas and is set at an altitude of 36000+ feet. Which is the longest tunnel? The Laerdal tunnel was built in 2000. The image was taken by Svein-Magne Tunli. Aurland and Laerdal are connected by […]
The best air purification and cleaning can be provided by mechanical ventilation systems. It’s most effective in hot climates. The amount of pollutants in your commercial spaces can be reduced by exhaust ventilating. Which type of ventilation is most effective? Due to the use of natural forces and large openings, natural ventilation can provide a […]
The law states that headlights must always be used when a vehicle is being driven in the dark or dim light, and if visibility has deteriorated due to the weather or other reasons. Do you need headlights in a tunnel? If you can’t see 500 feet in front of you, you need headlights. When the […]
Good, daylight driving conditions are not covered by the 3-second rule. Double the 3-second rule to six seconds if you are driving in heavy traffic, driving at night, or in weather that is not ideal, such as rain or fog. What is the 3 second rule in driving? The three-second rule can be used for […]
The phrase was used as a metaphor for hope in old newspapers and magazines. The phrase a light at the end of the tunnel was popularized by President John Kennedy in the 1960’s. Who said there is light at the end of the tunnel? There is light at the end of the tunnel. The following […]
Are sun tunnels any good? Up to 20m of effective light distribution is offered by rigid sun tunnels. Flexible sun tunnels are better for shorter distances as they allow you to negotiate around obstructions in the roof space. Are sun tunnels energy efficient? If you add the optional solar night-light kit, you’ll have light at […]
Are light tunnels any good? Sun tunnels are a great way to illuminate a windowless room. It’s a great addition to any home that is in desperate need of sunlight, because it’s a very simple tool that carries a number of benefits. How effective are light tunnels? Up to 20m of effective light distribution is […]
