the passenger version of the Boeing 747-8, also known as the 747-8I for 'Intercontinental,' has a fuel capacity of 63,034 gallons (238,610 liters). According to Boeing, these aircraft have a range (based on a load of 410 passengers) of 8,900 miles (14,320 km). Dividing the latter by the former, we get a figure of just 0.142 miles per gallon.

The figure for the Boeing Business Jets (BBJ) version of the 747-8 is slightly more favorable. Indeed, based on an assumed capacity of just 100 VIP passengers, this private jet has a range of 10,213 miles (16,437 km), resulting in a figure of 0.162 miles per gallon. As for the 747-8F, which carries cargo, its range of 4,908 miles (7,899 km) and fuel capacity of 59,734 gallons (226,095 liters) give it a figure of 0.082 miles per gallon. But are these low figures as bad as they seem at face value? //

the 747-100, Boeing's data shows that this version of the iconic quadjet could typically fly for up to 5,320 miles (8,560 km). When this range is offset against the 747-100's maximum fuel capacity of 48,445 gallons (183,380 liters), we get a figure of 0.11 miles per gallon. As such, the 747-8's score on this front has improved by more than 29% from the oldest to the newest model. //

when we multiply the 747-8's figure of 0.142 miles per gallon by its capacity, for this purpose, of 410 guests, we get a much healthier figure of 58.22 passenger miles per gallon. Of course, a full five-seater car would only need to achieve around 11.65 miles per gallon to get a higher passenger miles per gallon figure, but, in reality, cars often only transport their driver. As such, in this regard, a fully loaded 747 can be more efficient than certain cars in the event of solo occupancy. //

Boeing 747 Production

Sub-Family

Number Produced

747-100

205

747SP

45

747-200

393

747-300

81

747-400

694

747-8

155

Turning a Kindle into a portable monitor isn't something you can do with the standard firmware. Amazon locks its software down so you can't just throw some code onto your Kindle and get it to display whatever you want.

The good news is that plenty of people far smarter than I am have figured out how to jailbreak many Kindle devices. I'd already done this to my Kindle and installed the KUAL app launcher that lets me install and run custom apps such as KOReader. Using the USBNetwork software, I was able to connect my Kindle to my computer over USB and SSH into it as if it were a network device.

https://www.howtogeek.com/how-to-jailbreak-a-kindle-ereader/

With my Kindle jailbroken, I was able to set up a method of getting the Kindle to display a mirror of my Mac desktop. This works by running a shell script on my Mac that takes a screenshot of my desktop every half a second. This is passed through ImageMagick, an open-source image processing tool that converts the image to grayscale and resizes it to the correct resolution for the Kindle's screen.

This image is then made available as a JPEG over my home network using Python's lightweight web server. Another shell script running on the Kindle fetches the JPEG over Wi-Fi using Wget, a common tool for downloading files. The JPEG is then displayed on the Kindle screen, and the process repeats, producing a near-live mirror of my Mac desktop running at around one frame per second.

The result was better than I was expecting.