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The most common piece of wood, the 2 by 4, is actually 1.5 by 3.5 inches. This discrepancy arose from the need to reduce shipping weight and costs in the early 1900s. There was no legal standard for the dimensions of a 2 by 4, leading to regional variations. The Department of Agriculture established a national standard in 1919, based on the most economical thickness. The size was further reduced in the 1960s.
Key Insights
The dimensions of a 2 by 4 were not standardized until 1919, resulting in regional variations and confusion.
The reduction in size was driven by the need to save on shipping costs, as well as the belief that thinner boards still had ample strength.
The Department of Agriculture determined the most economical thickness, leading to the adoption of the 1-5/8 by 3-5/8 inch standard.
The current dimensions of a 2 by 4 are suitable for light-frame construction and smaller projects.
The history of the 2 by 4 reflects the challenges of balancing cost, efficiency, and standardization in the lumber industry.
The dimensions of a 2 by 4 were further reduced in the 1960s, with the width remaining the same but the thickness decreasing.
The current dimensions are a result of practical considerations and have become the accepted standard for the industry.
Practical Engineering is such a good channel. I feel like Grady strikes a really good balance of high enough production value that it doesn't get in the way of paying attention, while still being extremely educational.
He screwed the pooch on this one. He clearly only left the fan on for two seconds because he didn't want to explain why his boat started moving when he left it on longer, whether that movement was spinning or moving forward. The sail isn't a perfect wall that negates the forces of the fan and so some of the air will blow back or to the sides off of it and make the boat do something.
There's lots of other great info in the video, but he used this sail thing as click bait and is showing he cares more about selling his products now than really teaching. Sad.
Tournesol is an open-source web tool by a non profit organization, aiming to evaluate the overall quality of the information in videos from community made comparisons, to fight against misinformation and dangerous content.
Why wouldn't they just use horizontal directional drilling? No need to excavate a giant pit if you do. Although this does seem like a pretty dinky old rig...
Hi Fenrir, this community requires that posts have the duration of the video in the title between two brackets, in the case of this video, it would be [11:10].
Could you add that to your two posts please? Thankfully, unlike reddit, post titles are editable here. :)
As an aside, I cannot see my post history on Lemmy (through the web or mobile). So, I cannot find my other post to edit it. Do you happen to have a link?
and to be able to see a list of your post history, go into your settings and fix something in there. that happened to me too I couldn't see any of my posts So after a couple months I finally figured out to go into my settings and fix it.
Also, you may not be able to see your posts on your profile if 'undetermined' is deselected in your languages. You can select multiple languages by holding down Ctrl.
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