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200 Watt car mounted laser!
นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูเพิ่มเติม
Visit https://bit.ly/30eG6YG and use promo code H4MUUKFG5VZY to get 5% off when purchasing the DJI Mavic Mini or Mavic Mini Fly More Combo
I have been wanting to make this laser FOREVER and i could have made a hour long video on it. But dont worry, I have much more planned for this laser!
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There were never any planes in danger and I can prove it with science. First of all, we never turned the beam on more than 4 amps (50 watts)because we were having cooling issues and couldn’t really monitor it up on the car.. (we tried 6 amps once but it was too bright.)
So assuming the beam stayed perfectly collimated, the beam would have an area of 430 square centimeters. If the laser was running at 25% power (4 amps/50 watts) that would be about 110mw/cm2 from the telescope. However, your pupil is only half this size fully open, so a pilot could theoretically receive a 50mw/cm2 exposure. A decent amount, but you have to remember even the smallest plane is traveling 150 miles per hour which would limit total exposure time to only 3ms( time it takes to cross a 9 inch beam). That puts it at the cusp of the maximum exposure limit, which is defined as \”about 10% of the dose that has a 50% chance of creating damage under worstcase conditions.\” Here is the chart im referencing https://en.wikipedia.org/wiki/Laser_safety/media/File:IEC60825_MPE_W_s.png
So even under perfect conditions, this would still be 10x less than the exposure that carries a risk of damage. That’s assuming perfect conditions, but in reality it was a hazy night, the laser would not be perfectly collimated, the atmosphere would distort the beam, the windows in the airplane would deflect some of the beam, unless the pilot was staring directly at the beam they would receive a smaller dose, I tried to keep the beam moving when up in the sky, and most planes are moving faster. all of this meaning the pilot would be exposed to a much lower amount of laser energy in the real world than under perfect conditions. even at full power this laser is still within the safety factor of the maximum exposure limit. Plus do you know the odds of hitting a plane with a laser when your trying not to? just pick a random star in the sky and wait for a plane to fly over it.
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5 Thai Foods for Under $1.50 (50 Baht)
THAILAND HAS AMAZING FOOD AND IT’S SO CHEAP!
If you’re wondering why we moved to Bangkok, the delicious street Thai food is one of the biggest reasons. Last night, we went to a popular night market and I ate more food than any person can handle (except for maybe Joey Chestnut) and I spent a total of $6 USD.
Back in the states, if I were to go to a Thai restaurant, $6 would probably get me an egg roll and a coke.
Join me today as I take you on a mouthwatering Thai food tour of Bangkok, to see some of the wonderful Thai foods that you can get for less than 50 Baht ($1.50).
WHO ELSE IS IN LOVE WITH THAI FOOD? Comment your favorite Thai dish below!
Music: Epidemic Sound
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Barya barya lang po walang personalan.
1 Timothy 6:610 KJV
But godliness with contentment is great gain. [7] For we brought nothing into this world, and it is certain we can carry nothing out. [8] And having food and raiment let us be therewith content. [9] But they that will be rich fall into temptation and a snare, and into many foolish and hurtful lusts, which drown men in destruction and perdition. [10] For the love of money is the root of all evil: which while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows.
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นอกจากการดูหัวข้อนี้แล้ว คุณยังสามารถเข้าถึงบทวิจารณ์ดีๆ อื่นๆ อีกมากมายได้ที่นี่: ดูบทความเพิ่มเติมในหมวดหมู่BUSINESS & INVESTMENT tại đây
