HNHacker News
TopNewBestAskShowJobs

cladari

52 karma · joined July 3, 2015

submissionscomments
cladari··on Cassie LaBelle: "eBay completely destroyed my life"
The R in ALARA is reasonably.
cladari··on Review of 737 Max Certification Finds Fault with Boeing and FAA
Anecdote - After TMI the NRC mandated that all nuclear plants install a system to automatically initiate auxiliary feed water to the steam generators if certain criteria were met. The Combustion Engineering version of this was called Aux Feed Actuation System or AFAS. During the next refueling outage it was being installed and I was giving lectures on it's design and operation (I had moved from operations to training by then) and the very first question from the very first operator training session was "How do you turn it off". My answer was "you can't". They were not happy.
cladari··on Rising rural BMI is the main driver of the global obesity epidemic in adults
I don't think it's possible to exercise your way to weight loss. A handful of Oreo's will negate an hour workout. Simply cutting out as much added sugar as possible will drop weight quickly on just about anyone. Cutting out sugar isn't really a diet but more of a habit change. I'm not saying don't exercise, I'm saying both are necessary for results.
cladari··on China to the Rescue of Nuclear Power?
In Japan they shut down each plant yearly for inspection. Everywhere else it's done on the refueling cycle. The plant I worked at was on a two year cycle so each year one of the two plants shut down for about an 8 week refuel/overhaul outage.
cladari··on As crime dries up, Japan’s police hunt for things to do (2017)
I got a speeding in a school zone ticket and fought it because the points for that offence are high. The sign gave times the speed limit was in effect but I missed it and there were no other cars on the road so I didn't have that as a reference either. My lawyer argued that if the time of day was required knowledge there should have been a clock installed under the sign or some other visual alert. I got off.
cladari··on The Slow Death of Hollywood
Unless you live in or near a fairly large urban center, or some large college towns, you won't find movie theaters showing small films.
cladari··on Ask HN: What are your favorite YouTube channels to learn stuff?
I'd add Americas Test Kitchen - independent testing of kitchen appliances and basics. Recipe how to's after extensive testing. Good cooking tips.
cladari··on Blackbird SR-71 Flight Manual (2010)
I'm remembering back 40 years here. I worked in the engine room of a nuclear powered cruiser. We had a switch called something like "battle bypass" that would bypass all the auto scram functions. The military calls a shutdown scram while the commercial industry calls it trip. We had a captain rank captain and I believe all nuclear powered vessels had one.
cladari··on Driven – A bicycle drivechain concept without derailleurs and chains
There are plenty of motorcycles with belt drive, the suspension doesn't seem to be a problem.
cladari··on You Are Old, Father William
We also lowered the voting age to 18.
cladari··on Greed and corruption blew up South Korea’s nuclear industry
South Texas is a 4 loop Westinghouse design and Palo Verde is a 2 loop System 80 Combustion Engineering design. Neither is experimental or unusually dangerous.
cladari··on Ethiopian Airlines 737 MAX Investigation Preliminary Report
The 737 has a better glide ratio than a Cessna 172 when both set up correctly.
cladari··on Ethiopian Airlines 737 MAX Investigation Preliminary Report
Am I missing it because I don't see flaps mentioned anywhere in that link.
cladari··on No call for simulators in new Boeing 737 Max training proposals
Licensed nuclear plant control room operators go through 40 hours of training every 6 week. Generally 5 weeks of operations rotation then 1 week of training, all year, every year. Twenty hours of classroom and 20 hours of simulator training, the week includs a written and simulator exam. Failing either and the operator is taken off shift until his remediation training is complete and exams passed.

If pilots rotated into training time these changes could be addressed in simulators on a scheduled basis the airline could plan for.

cladari··on M-16: A Bureaucratic Horror Story (1981)
This is the straight scoop on the development of the M16. This is the channel for all things Colt. https://www.youtube.com/watch?v=SE0xcxwZg2M
cladari··on M-16: A Bureaucratic Horror Story (1981)
It wouldn't stabilize tracer rounds, it was perfectly fine with standard issue rounds. The manual bold close wasn't in Stoners original design, it was requested by the military. In my opinion the internal piston design is the true genius of this rifle. Recoil is almost straight back so follow up shots are much easier.

As the Russians seem to be moving to 5.56 the American military is looking to move to the 6mm class.

cladari··on My First Life as a Nurse (2015)
My first wife was an ER nurse then cardiac critical care. The doctors would look for her to talk to the families of patients who had died because they said she was good at it.
cladari··on A new class-action lawsuit takes aim at real estate agents and their 6% fee
You can get breakfast at the Breakers for 50 bucks or the Waffle House down the street for 10 dollars. The Breakers waitstaff will get a 10 dollar tip and the Waffle house staff will get 2 dollars for the exact same meal and the exact same amount of work. It's a messed up system.
cladari··on As Costs Skyrocket, More U.S. Cities Stop Recycling
If he said that in 1970 he only had 3 years wait for item 2. The IBM Selectric II Correcting was introduced in '73.
cladari··on How Inuit parents teach kids to control their anger
My youngest of 3 is now 32 years old. I've recently been thinking about the oft heard "I'm always amazed by the things my grown children remember and the things they don't". I've been trying to discover why they remember things I've forgotten, why that moment was so important to their young lives. We've started to talk about it, trying to find the base so they can use the lesson in their own child rearing.
cladari··on Doctor tells patient he doesn't have long to live through video screen
It doesn't cost the hospital a nickel to have that doctor walk into the patients room. You will get a bill for that from the doctor's practice, not from the hospital.
cladari··on California's San Bernardino County restricts construction of solar, wind farms
What they are talking about is what is used to condense the steam exiting the main turbine which is the thing that spins the generator. DC uses seawater to run through the condenser and then back out to the sea, warming the water about 20 degrees if I remember correctly. This is why you see most nuclear plants along the coast or lining the Great Lakes.

The only other methods I am aware of are the giant cooling towers people associate with nuclear plants or ponds (more like canals which snake back and forth, see Turkey Point in Florida) which allow the water to cool before reuse.

cladari··on Chevy Volt discontinued: Chevrolet's last Volt rolls off the assembly line
I think you would see electric cars take off if those without garages or driveways had a way to charge them nightly. I know I would have one on my list. Perhaps use the government buyers incentive to instead give a write down to developers to install charging stations in their parking lots.
cladari··on Toxic ‘Forever Chemicals’ in Drinking Water Leave Military Families Reeling
Basic systems will waste 4 gallons of water for every gallon of purified water depending on input pressure and temperature. Lower input temperature and pressure will increase waste and lower output.
cladari··on How Former Ref Tim Donaghy Conspired to Fix NBA Games
Donaghy told his handler (allegedly) that he could swing a game by 6 points, anything more and it would be too obvious.
cladari··on The Last Resort
When I was diagnosed with cancer of the base of my tongue and my neck my doctor outlined my options and the need to waste as little time as possible. I suddenly realized how much trust she was asking me to place in her. I took 2 days for my own research. I didn't research the options she gave me thinking that was a rabbit hole leading nowhere, I researched her.

Turned out she was Harvard med school, two Johns Hopkins fellowships and a handful of primary author papers all specializing in head and neck cancer. I took her advice on a treatment plan without fear.

I believe it's almost impossible to research treatment methods on your own because the field is so fragmented and complicated. You don't have a month or two, you have days. Researching your medical team is black and white, fact driven and objective.

cladari··on Remembering the Murder You Didn’t Commit (2017)
"I intend to fully cooperate but first I'm going to talk to a lawyer to get advice on the best way to do that".
cladari··on Nuclear Waste Dumpsters in Massachusettes Are Costing Taxpayers a Fortune
Spent fuel can be repossessed into weapons grade material and into commercial fuel. Europe, Russia and Japan all reprocessed spent fuel into commercial fuel.
cladari··on How Wild Was Wild Bill Hickok?
Modern revolvers don't have the "striking the hammer can discharge the round" because they now use a hammer bar. You can load all the chambers without fear of this happening. You may be surpised to learn that all modern revolvers require pulling the trigger and thumbing the hammer down, as do the very popular 1911 pistol and it's many clones. It should be noted that modern revolvers don't have a safety. A large majority of striker fired pistols don't have a traditional safety either.
cladari··on First contact made with melted nuclear fuel at Fukushima plant
In a pressurized water reactor the water is the moderator (bounces and slows the neutrons) and dissolved boron is the poison used to control the reaction.
Page 1 of 2Next →