Overlapped underwater turbines work more energy efficient in the comparison of single turbines

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The present invention relates to a support structure of hydrokinetic electric power plants, designed for converting the kinetic energy of unidirectional and invertible water flow into electric energy. In particular, it serves as an underwater structuring support girder of hydrokinetic turbines in rivers, as well as in tidal water flows. The advantages of the support structure are that due to the significantly decreased spaces between the shafts of the horizontal axial turbines, which it supports, the entire structure becomes more compact, lighter, and cheaper, while at the same time the turbines work in a more energy efficient way

Energy saving with LED Filament Bulbs Comparison with Edison Incandescent

Views:265555|Rating:4.68|View Time:1:34Minutes|Likes:620|Dislikes:43
Comparison with Incandescent Edison style bulb and LED Filament Edison Style Light Bulb.


40 Watts of power consumed
135 Lumens
3,000 Hours Life Expectancy

3.3 Lumens per Watt


3.7 Watts of power consumed
440 Lumen
30,000 Hours Life Expectancy

118.9 Lumen per Watt

Average American vs Average European – How Do They Compare? – People Comparison

Views:3936557|Rating:3.44|View Time:8:44Minutes|Likes:41420|Dislikes:18762
Who makes more money? Who lives longer? How much vacation does each have? How much in debt does each go for their education? We thought it would be fun to see how equal, in some respects at least, the modern US citizen is now with the modern EU citizen, in this comparison of The Infographics Show, The Average American vs. The Average European. ⭐SUBSCRIBE: ⭐

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8 Car EV Efficiency Comparison: Model 3, Model S, Bolt, & Ioniq!

Views:85|Rating:5.00|View Time:8:41Minutes|Likes:14|Dislikes:0
A 76.7 mile, 75 mph efficiency shootout between 8 electric cars:
– Tesla Model 3 Long Range RWD w/18″ Aero Wheels
– Tesla Model 3 Long Range RWD w/19″ Wheels
– Tesla Model 3 Long Range AWD w/18″ Aero Wheels
– Tesla Model 3 Long Range AWD Performance w/18″ Aero Wheels
– Tesla Model 3 Long Range AWD Performance w/20″ Wheels
– Tesla Model S P85+ (RWD) w/21″ Wheels
– Chevrolet Bolt LT w/Cruze Eco Wheels & Volt Tires
– Hyundai Ioniq Electric

Huge thanks to Bjørn Nyland (TeslaBjørn) for contacting everyone and arranging this comparison!

Bjørn’s video:
Eric’s video:

Previous comparison on David’s channel:

EV & Tesla related shirts can be found on my Teespring store:

If you found this video helpful and are thinking of buying a new Tesla Model S, Model X, or Model 3, feel free to use my referral code to receive six months of free Supercharging:

Drop me a line on Twitter if you have any questions or whatever:

Music Info:

Title: None Trick Pony by CloudNone from Welcome To London EP
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Disclosure: The creator of this video is a Tesla owner and is long $TSLA

The Best & Worst Oil Filter Made Today -13 Oil Filter Comparison

Views:30709|Rating:4.71|View Time:21:24Minutes|Likes:777|Dislikes:47
I cut open 13 oil filters to compare who is the best. Five of the oil filters were for conventional oil and the other eight filters were for synthetic oil. These are the brands of oil filters I cut open: Mobile1, Fram, STP, K&N, Wix, Bosch, Mopar, Motorcraft, AC Delco, and Supertech. This is an Ultimate Oil Filter Challenge, conventional vs synthetic oil filters. This is the best oil filter comparison I have done. Remember an OEM filter is always recommended by the dealer.

Get Cashback on tools

Oil Filters

Oil Filter Cutter

Angle Grinder

Workshop Apron

Safety goggles

Full face protection

The camera’s used:

Pansonic G7

GoPro Hero7 Black

Who Makes The Best & Worst Oil Filter To Protect Your Engine – 13 Oil Filters Compared

Aircraft Air Filter Comparison

Views:10736|Rating:4.75|View Time:5:43Minutes|Likes:57|Dislikes:3
Inlet air filters are critical when it comes to keeping dust and dirt from entering the engine, but not all FAA-certified air filters are created equal. In this video, Larry Anglisano from Aviation Consumer magazine looks at three competing filters to see how they compare.

Secure Set to Sika Comparison

Views:396131|Rating:2.87|View Time:4:44Minutes|Likes:588|Dislikes:437
Secure Set is compared to similar product Sika

* Secure Set is 10x’s faster than traditional use of concrete for fence post installations.
* Our proprietary formula works with Wood, Metal, Vinyl, PVC, Concrete and Fiberglass Posts.
* Set it and forget it – Secure Set is designed to be environmentally friendly and extremely FAST!!!
* No Water, No Mess, No Heavy Bags – Mix, Pour and Done.
* Designed for Power Poles and Telephone Poles. Secure Set now available for home and commercial use

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