flug @flug@qoto.org

Little Blue Park and trail

@minogully@mstdn.ca They might have some specific definition of "constant" in mind, or some specific situation or usage.

Just for example, in a polynomial expression we often write it with constants denoted like a, b, c and the variable is x. So ax^2 + bx + c.

That type of constant is a different thing than pi, even though we typically use the same word to describe them. Like if you wrote ax^2 + bx + pi, that mean something different than ax^2 + bx + c.

But still, that is sort of a strange thing to just blurt out randomly without taking the time to give a full explanation. Just for example, pi is one of the first specific examples given in the Wikipedia article on mathematical constants: https://en.m.wikipedia.org/wiki/Constant_(mathematics)

Green River, Utah

Biked to Dover Station. This is one of roughly 1000 *amazing* places along the Missouri River that you can visit on MoBikeFed's Lewis and Clark Missouri River Adventure Bicycle Route: https://ridewithgps.com/events/105329

Sunset at the Great Salt Lake. #utah #GreatSaltLake #BikeTooter #gravelbike #gravelcycling #photo

More from our visit to Crouse Canyon in the eastern #UintaMountains of #DaggettCounty #Utah. FYI the red sandstone formation you see throughout is the Uinta Mountain Formation, which has been called "the sandstone that fooled the great geologists".

Powell, Hayden, Emmons, and King all thought the rock was mid-Paleozoic but in fact it is *Pre-Cambrian*.

TLDR: They thought it was about 400 million years old but in fact it is 650 million - 2.5 billion years old. So they were off by a bit.

The Crouse Canyon formation here is about 800 million years old.

What is unusual for rock this old is that is it is mainly plain old sedimentary sandstone. Strange for rock buried 15-20,000 feet deep for several hundred million years. Some deeper/old layers are partially or completely metamorphosed, but these upper layers are not.

https://plantsandrocks.blogspot.com/2015/01/the-sandstone-that-fooled-great.html

#GreenRiver #BrownsPark #OutlawTrail #geology #precambrian #sandstone #metamorphic

Touring Crouse Canyon in the eastern #UintaMountains in #DaggettCounty #Utah #GreenRiver #BrownsPark #OutlawTrail

Moonset

Blue River #Trail in #KansasCity #Missouri

#Amtrak #CaliforniaZephyr following the #ColoradoRiver east through the #RockyMountains.

First post of the #CZSeries - reposted to add series tag and number: 1/23

FYI all photos were taken with a Moto G Stylus (2022), most using #GCam (specifically Google Camera LMC 8.4) in HDR+ Enhanced mode. A few were taken with the native Moto Camera app. Usually I process them a bit in Google Photos to de-tilt as needed and correct the colors.

For extra atmosphere, most all were taken through the (very) dirty windows of the California Zephyr, which are thick, green, covered in water spots, and quite reflective, especially when the photo is taken at any angle at all.

#trains #railroad #passengerrail #photography #colorado #rockies #scenery

Final #photos taken on my #CaliforniaZephyr trip in November- arriving at my CZ destination of #galesburg #illinois.

From here I'll transfer to the #SouthwestChief for Kansas City. It's just a short layover - and they even managed to transfer all my luggage over correctly. A California Zephyr miracle!

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #CZSeries​ 23/23

Yet more #photos taken from the #CaliforniaZephyr - now crossing the Mississippi River.

The Mississippi does not disappoint at all - it is B-I-G.

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #illinois #iowa #mississippiriver #CZSeries​ 22/?

More #photos taken from the #CaliforniaZephyr - the Missouri River bottoms near #Omaha.

The station is #OttumwaIA.

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #iowa #missouririver #CZSeries​ 21/?

More #photos taken from the #CaliforniaZephyr - the Missouri River bottoms near #Omaha.

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #nebraska #iowa #missouririver #CZSeries​ 20/?

More #photos taken from the #CaliforniaZephyr - the Missouri River bottoms near #Omaha.

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #nebraska #iowa #missouririver #CZSeries​ 19/?

More #photos taken from the #CaliforniaZephyr - the Missouri River bottoms near #Omaha.

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #nebraska #iowa #missouririver #CZSeries​ 18/?

More #photos taken from the #CaliforniaZephyr - the Missouri River bottoms near #Omaha.

After all the lead-up, the Missouri River was surprising brief and anti-climactic. A lot of the surrounding lakes and sloughs look just like it - not surprising since the are all located in old river beds.

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #nebraska #iowa #missouririver #CZSeries​ 17/?

More #photos taken from the #CaliforniaZephyr - the Missouri River bottoms near #Omaha.

Finally getting close to the river. We went south along the river bottoms for what seemed like an eternity before finally turning east and crossing the river.

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #nebraska #iowa #missouririver #CZSeries​ 16/?

More #photos taken from the #CaliforniaZephyr - the Missouri River bottoms near #Omaha.

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #nebraska #iowa #missouririver #CZSeries​ 15/?

Further #photos taken from the #CaliforniaZephyr - the Missouri River bottoms near #Omaha.

It was a frozen day - more cold and ice have than in the Rockies. The Missouri River was steaming like the devil.

#amtrak #trains #railroad #passengerrail #photography #scenery #midwest #nebraska #iowa #missouririver #CZSeries​ 14/?