Roger Levasseur

Linux system programmer; husband and father; enjoys reading, photography, biking, and hiking. 48 of 48 of New Hampshire’s 4000' mountains.

[Roger Levasseur @rogerhere]

@_MCKENZIEJR__ @engineers_feed Sources of variation include things like growing season: leaves in trees add some weight higher up. The amount of water stored behind dams does, too, as it's also weight at a higher elevation.

[Roger Levasseur @rogerhere]

@razorsnails @engineers_feed How much? What of certifications? What of reliability? What of mischief? What of accidental damage? What of road construction or detours?

[Roger Levasseur @rogerhere]

@BarreldodgerCR @LouC_2 @engineers_feed Eventually...right... how often have they driven past a school bus picking up/dropping off students? There are recent reports of them driving full speed into reduced speed construction zones. They've driven into closed areas due to police or fire fighting activity.

[Roger Levasseur @rogerhere]

@Jason_R_Burt Japan surrenders before they are sent to the west coast to take a troop transport to the western Pacific.

[Roger Levasseur @rogerhere]

@Jason_R_Burt Units that were going to the Pacific left Europe for the US for refresher training along with new recruits, and would in turn leave for the western Pacific for Operation Coronet planned for the spring of 1946.
The 87th was part of Third Army and arrived in New York July 11, 1945.

[Roger Levasseur @rogerhere]

@MavsLaker @MilHistNow First combat squadron was ready March 1943 on USS Essex. First combat was August 31, 1943 against Marcus Island. Also the first combat of the USS Essex carrier, too.

[Roger Levasseur @rogerhere]

@mdtodd76 @MilHistNow The engine- P&W Double Wasp.
It also powered the Corsair and the P 47 Thunderbolt.

[Roger Levasseur @rogerhere]

@engineers_feed And not just any sand: high purity quartz sand, such as what originates from the Spruce Pine mining district in North Carolina.

[Roger Levasseur @rogerhere]

@engineers_feed To scale up chip production they’ve increased the diameter of the boule thru the decades. 12 inches since the early 2000s. In the 1990s they were 8 inches, 4 inches in the 1980s, 2 inches in the 1970s, and originally 1 inch in the 1960s.

[Roger Levasseur @rogerhere]

@thegeneralboard Nicknamed the “covered wagon”

[Roger Levasseur @rogerhere]

@Boneyardsafari 54 caliber (as in length is 54 times it's 5" bore, not small gun barrel size), versus the typical WWII 5" gun that was 38 calibers long.

[Roger Levasseur @rogerhere]

@jfazli @TerribleMaps pssst.... its really Carson City

[Roger Levasseur @rogerhere]

@jfazli @TerribleMaps How many people think Reno is the Capitol of Nevada?

[Roger Levasseur @rogerhere]

@MbarkCherguia One thing that jumps to mind is that slot in the bumper on the left side. That's for jacking up the car - the car jack had a hook that went into that slot. Each corner of the bumper had one.

[Roger Levasseur @rogerhere]

@bolshevik174657 @MilHistNow The 600,000+ horse and mules were doing their part to haul towed artillery, shells, and general logistics, doing upwards of 20 miles per day. Only 30 to 40% of the Barbarossa invasion was mechanized.

[Roger Levasseur @rogerhere]

@uk_steffi @MilHistNow The Germans had inadequate sealift and were gathering up canal barges to add to the sealift. These were not suitable for the rough weather that can happen on the Channel. The British undertook efforts to destroy shipping and storage depots to prevent a seaborne invasion.

[Roger Levasseur @rogerhere]

@ThomasO62813051 @engineers_feed Ford's Pinto debacle enters the room.

[National Radio Astronomy Observatory | NSF NRAO @TheNRAO]

Saving the Quiet Sky: Scientists and Telecom Team Up to Protect NSF VLA

Teamwork makes the dream work! 🤝 NSF NRAO engineers collaborated with wireless provider to prevent interference with one of the world’s largest radio telescopes.

https://t.co/DOTW8CZTkj

[Roger Levasseur @rogerhere]

@ReneYibowei @PR0GRAMMERHUM0R Yes, use x and y instead.

[Roger Levasseur @rogerhere]

@StanBaldwin67 @Jason_R_Burt One thing to note: the promotions to 5th star for the Army and Navy were sequenced one day at a time. IF Halsey was to have received it at that time it probably would have happened on December 21st 1944.

Halsey's Typhoon, Typhoon Cobra, happened December 17 to 18th, 1944.