This trailer saves 7000l of diesel per year. Assuming 40l/100km, with this trailer you can go ~17.000 km more, which is 11-17% more, for the same fuel cost. Or ~12-15k EUR in fuel savings per year (assuming 1.8EUR/l).
With 13+ years ROI (electricity is not free) is this really beneficial?
How is TikTok able to screen this en masse? Are they going after tags? Political issues aside, I am really interested in the technical background in this.
They mean the intersection between the cone produced by the satellite and "illuminated" surface. If the antenna beam is normal to the sphere, it will produce a disk which has an diameter.
Virtually any LCD screen will produce polarized light. This is the core working principle of those screens. So if you use a polarized filter (sunglasses for example) it will completly block the image coming from the screen.
To recycle plastic, the only viable way is to melt it. And the plastic must be very clean before it can be remelted. If it even is a kind of plastic that can be reheated multiple times. I am afraid the short answer is no.
Donated blood has a limited shelf life. So this is about the stocks the donation centers have. This tech can use the almost expired stocks to "recycle" the donations, instead of destroying it.
With 13+ years ROI (electricity is not free) is this really beneficial?