Can humans see microwaves? The human retina can only detect incident light that falls in waves 400 to 720 nanometers long, so we can’t see microwave or ultraviolet wavelengths. This also applies to infrared lights which has wavelengths longer than visible and shorter than microwaves, thus being invisible to the human eye. Why can’t our […]
Are cash crops bad?
Are cash crops bad? Cash crops caused drastic effects to the environment. Poor soil quality, loss of forests, sediment build up in waterways, and the list goes on and on and on. What will happen if we only grow cash crops? Each of the crops needs different growth conditions, different nutrients, different harvesting seasons and […]
What does Labour force mean?
What does Labour force mean? currently active population Are unemployed counted in the labor force? People with jobs are employed. People who are jobless, looking for a job, and available for work are unemployed. The labor force is made up of the employed and the unemployed. People who are neither employed nor unemployed are not […]
What are the two uses of electricity?
What are the two uses of electricity? People use electricity for lighting, heating, cooling, and refrigeration and for operating appliances, computers, electronics, machinery, and public transportation systems. What are the main uses of electricity make a list? Uses Of Electricity Entertainment. Healthcare. Engineering. Transport and Communication. Outdoors. Household. Commercial. Office. What is electricity and types? […]
How many watts of radiation is dangerous?
How many watts of radiation is dangerous? To cause death within hours of exposure to radiation, the dose needs to be very high, 10Gy or higher, while 4-5Gy will kill within 60 days, and less than 1.5-2Gy will not be lethal in the short term. However all doses, no matter how small, carry a finite […]
How many miles a day can you kayak?
How many miles a day can you kayak? On average, a reasonably experienced kayaker paddling a mid-sized solo boat can be expected to comfortably paddle between 10-20 miles a day. How hard is it to kayak 10 miles? A 10 mile kayak adventure will require about 5 hours to complete. But that’s not the entire […]
Does a burnt valve cause smoke?
Does a burnt valve cause smoke? Blue Smoke From the Tailpipe When valve guides and seals wear, it allows oil to pass through to the combustion chamber and be burned along with the fuel. You will also notice that your oil levels are consistently dropping, or you need to add oil often, and you’ve ruled […]
How does physical activity affect your mental health?
How does physical activity affect your mental health? Regular exercise can have a profoundly positive impact on depression, anxiety, and ADHD. It also relieves stress, improves memory, helps you sleep better, and boosts your overall mood. And you don’t have to be a fitness fanatic to reap the benefits. What are the negative effects of […]