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Yep. Ultralight hikers are industrious and good maintainers. They take pride in lightweight bags and making them or acquiring them. Those hikers will deal with a defect on the trail or after they get to port and expect to do so with their pack.

Your average backpack consumer is a different breed. Cosmetic designs, logos, colors, and generic pockets are key marketing traits of consumer backpacks and small rips or tears are seen as reasons to replace the backpack.

We landed on the Moon. Frame-by-frame analysis of the dust coming off the Lunar Rover at the speed and trajectory shown on video from the Moon proves the Rover was in 1/6th the gravity of Earth [1]. There was no way for that 1/6th gravity to be faked on Earth in 1971. Incidentally, probes recently sent to the Moon show where the Lunar Rover made paths in the dusty surface of the Moon, and those paths align with the original video from the early 1970s.

Flat Earth only has a handful of anecdotal short-range observations of some flat areas of Earth taken from a perspective near ground level. Relative to the size of the Earth, those short-distance observations are dominated by the margins of error in the observation. All of those sight lines are accounted for in LIDAR scans of the Earth as well as the WGS84 model.

For less than $1,000 you can send a high-altitude balloon up to see the slight curvature of the Earth. For a few thousand dollars, you can circumnavigate the Earth in an airplane along a common latitude. For tens of thousands of dollars you can go to Antarctica and see the 24-hour Sun from November to January. Or you could just have all your friends from around the globe point to the Sun and measure that angle. With basic trigonometry, you can see the Sun is about 92 million miles away.

[1] Hsu & Horányi (2012), University of Colorado Boulder - "Ballistic motion of dust particles in the Lunar Roving Vehicle dust trails," American Journal of Physics: https://ui.adsabs.harvard.edu/abs/2012AmJPh..80..452H/abstra...

OP isn't saying peanuts are a poor source of nutrition. OP is saying a few peanuts are calorically dense and it is easy to consume hundreds of calories through seemingly inconsequential amounts of snacks and drinks.

AI's Dial-Up Era 9 months ago

In these commercials, it wasn't the technology itself but the ease of access and visualized integration of these technologies into the commoners' everyday lives that was the new idea.

BTW: if you are looking for something to latch onto with the Olympics starting this week, the USA vs Jamaica rivalry in the short distance trace events is a great David vs. Goliath story. The two countries have been battling back and forth with each other for the top spots for the last decade or longer. The runners have flamboyant personalities and these are some of the fastest sprinters we have ever seen; both men and women. There is a documentary on Netflix called 'Sprint' that sets the stage for this Olympics.

Gravity decreases with distance from the Earth’s center. The lower the gravitational potential (the closer the clock is to the source of gravitation), the slower time passes, speeding up as the gravitational potential increases (the clock moving away from the source of gravitation).

Infinite Craft 2 years ago

Update - author has added two new features:

1) progress is saved locally so you can reload browser (helpful on iOS) 2) search bar added to discovered items list

In the late 1980's I had this VCR that would allow me to tune into over the air TV channels in the eastern US.

Being an elementary aged student poking around, I realized I could use the tuner to listen in to telephone calls somehow. Granted, I lived on a farm and there were probably only two dozen houses within a mile radius of our home; the nearest being a quarter mile away. I had a small rabbit ear antenna on the back of my CRT TV that could have been plugged into the VCR.

I don't recall the actual hardware I had.

I never figured out if I was listening to cordless phones (seems they would not be powerful enough to reach me), cell phone signals (there were few cell phones in my poor rural community I assume but I guess there could have been travelers on a nearby highway), or CB radio signals from truckers on the highway (these seemed like mundane person to person conversations; not trucker conversations). Perhaps it could have been long distance HAM operators though they didn't seem to use any HAM protocols while speaking.

Losing my son 3 years ago

Agree that this is very heavy. I appreciate OP's vulnerability. I've got little ones and I need to read this; I just can't right now. I'll be glad do donate to OP if that's what we're doing.

BTW: those durable plastic carry bags from IKEA are a bit of a lifehack for me. They are just a few USD each and they carry a lot of volume and weight. I keep a couple folded up in my vehicle and in the garage. They are great for carrying lots of groceries, firewood, and other items...such as valuable pieces of art.