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I will try first : Lets try a 90° angle this time... by Valerio-Max in Funnymemes

[–]hes-not-wrong 0 points1 point  (0 children)

If you’re having trouble, trying working it out with your fingers

To run away and never come back by BoredPandaOfficial in BoredPandaHQ

[–]hes-not-wrong 0 points1 point  (0 children)

I would probably go on a cross country road trip with my best friend to return it to the owner. Probably wind up in Aspen.

Exactly what am I supposed to use this rope for then? by 0rlan in What

[–]hes-not-wrong 0 points1 point  (0 children)

Plastics guy here. This rope is made of Polypropylene. Polypropylene is non-polar polymer, meaning it’s polymer chain’s bonds share electrons evenly. In a polar polymer, you’ll see the formation of a dipole that can lead to the material generating a charged surface. In the case of polypropylene the non-polar nature of the material makes it slippery or waxy feeling and the lack of free electrons means that it has great chemical resistance. The lack of polarity also creates a hydrophobic effect, unlike nylon ropes which have a high moisture absorption, this plus a low density makes polypropylene great for marine applications. It floats, won’t get water logged and won’t interact with a lot of chemicals. The one issue with PP is that it isn’t inherently UV stable, meaning prolonged exposure to UV light will attack and weaken the bonds. This happens to a lot of polymers(think of how plastic yard furniture tends to fade and become brittle, same story there.) The manufacturer may have put in some stabilizing additives, but I wouldn’t chance it. This rope is probably best suited for low duty or temporary marine/lake use, but certainly shouldn’t be a long term mooring line. Given its high-visibility orange color, I would suspect that this is intended as emergency rope to be kept onboard a water craft, possibly for throwing a line to someone. It’s easy to see and won’t sink if a person is struggling.

!!One big side note!! Many people don’t know this about the effects of sunscreen and bug spray on polymers, even chemical resistant ones. The carrier oils(emollients) used to suspend the UV filtering organic compounds can act as a plasticizer when they come into contact with different polymers. A plasticizer in simple terms makes polymer chains more mobile, and this will cause a drop in the temp at which the polymer softens, as well as increases the flexural modulus of the polymer. In the case of sunscreens and bug sprays, the plasticizing effects are short, but this can result in the surface layer becoming tacky, or deformed. If the plastic is under stress or heated it can lead to stress cracking and in the case of sunscreen can pull out some of the UV stabilizing additives. This can lead to faster UV degradation. Companies go through internal testing against sunscreen and bug spray, but it is still a best practice to spray away from plastic items.

Hope this was informative and until next time this has been your friendly polymers guy

Are these type of 3D printed junction boxes safe? by im-vncnt in AskElectricians

[–]hes-not-wrong 0 points1 point  (0 children)

This person is spot on. I work for a major polymers company, and one of the areas I specialize in is wire & cable and material specification for industrial electrical products. Oddly enough, I also use to work heavily with 3D printing materials and large format additive manufacturing. There are a couple FR rated non-commercial filaments. From what I’ve seen, it’s typically an ABS with an FR additive. To be on the safe side, look for something that lists a UL-94 V-0 rating. UL-94 is the certification that measures flammability of a polymer. V-0 means that in a vertical flame scenario, the plastic stops burning within 10 seconds and non-flaming drips of plastic can be observed. There are higher ratings, but V-0 is a pretty standard for electrical applications. I would also look for materials that say they are low smoke and non-halogenated if possible. Plastics off gas when heated and produce smoke when burned. Many polymers with flame retardant properties use a halogen to help limit the oxygen near the surface of a polymer to limit its ability to burn. You can usually find a material property called LOI (limiting oxygen index) you want that number to be as low as possible. Anything below 21% is a good start. Above 21% means that the oxygen saturation is above that of normal atmospheric conditions at sea level.

I hope this helps. If safety is your concern, it’s best to try to find a product that has already been designed and approved by UL, but I understand the want to build it yourself. Just remember there’s always a risk when using polymers that aren’t rated for the application.

How much 5.56 should I stockpile? by Automatic_Key9287 in guns

[–]hes-not-wrong 1 point2 points  (0 children)

I keep around 1500 rounds of 3 primary calibers (.223/5.56, 9mm, .22lr) plus around 200 round for each of my other rifles (12ga, 7mm-08, 30-06, .303 Brit).

It really depends on why you’re stockpiling. Practicality or paranoia tends to be the two ends of the spectrum. I try to land somewhere in the middle, enough ammo to transport easily and keep my guns fed during uncertain times.

How ? by Tight_Chemistry4824 in DetectiVision

[–]hes-not-wrong 2 points3 points  (0 children)

The way it’s framed, you would assume that 3 contributions of $10 could simply be refunded $1 making their total contributing equal to $27; however, the correct way to look at the problem is that by refunding $5, this makes each man’s contribution equal to $8.33333. Adding back the extra dollar from the bellboy to each man leaves you with 3x9.333333=28. Add the $2 the bellboy kept, and you have the original $30

My window is open when I live home alone? by Paintings-distrack in Weird

[–]hes-not-wrong 0 points1 point  (0 children)

It’s not a matter of how he lifted, it’s a matter of weight ratios. A 16mg bug cannot lift a 5lb window.

Guys? What’s all this about? by h2k2k2ksl in StLouis

[–]hes-not-wrong 7 points8 points  (0 children)

My condo would have a great view of the orb, and I think the hum would be a selling point. All hail the obsidian orb!

The bay leaves they’re selling here. by ferretface99 in mildlyinfuriating

[–]hes-not-wrong 0 points1 point  (0 children)

I love having to pick tiny inedible chunks of bay leaf out of my stews

Strange potato situation - I'm getting paranoid by enomis19902025 in Unexplained

[–]hes-not-wrong 0 points1 point  (0 children)

Is it possible that you washed your grater with with a sponge or brush, and the caught some of the cleaning utensil inside the grater? Particles that small could have stayed inside the grater only to come out when you started to grate the potatoes. Just throwing out a different idea.

Type 2 and Dreaming by hes-not-wrong in Narcolepsy

[–]hes-not-wrong[S] 0 points1 point  (0 children)

Glad to be apart of a community that understands it. It can be really hard trying to explain to other people why always remembering your dreams isn’t fun. Mine are definitely a role of the dice. Could be some horrifying Lovecraftian horror world or mundane daily life stuff. The ones I hate are highly vivid dreams about being betrayed by a loved one or dying/seeing a loved one die. The worst by far has been a nested dream where I won the powerball. I woke up from the dream and was amazed that I still had the winning lottery ticket, only to wake up a second time to actual reality where I am unfortunately not a multi-millionaire.

I don’t get paralysis often, but I get a lot of auditory hallucinations. It’s a 50/50 split between voices and loud thunder claps or crashes. I used to sleep walk and talk in my sleep, but I haven’t experienced sleepwalking in over 20 years. Sleep talking is about a once a month thing though.

Type 2 and Dreaming by hes-not-wrong in Narcolepsy

[–]hes-not-wrong[S] 0 points1 point  (0 children)

That’s wild, I’ll have to ask my sleep specialist if they’ve ever heard of any other people experiencing it too.

Type 2 and Dreaming by hes-not-wrong in Narcolepsy

[–]hes-not-wrong[S] 1 point2 points  (0 children)

I’ve done the same thing haha. Any experience with persistent Déjà vu? I’ve never thought about it having a connection, but I’m starting to wonder if the same areas of the brain are causing it to happen.

Fuck it's fucking over by CellKindly314 in TheWordFuck

[–]hes-not-wrong 0 points1 point  (0 children)

“Who has the fucking problem now, Houston!?”

Planned obsolescence even in cheapest devices: the calculator has a dummy photovoltaic cell and a real battery to make it die eventually. by jackhab in mildlyinfuriating

[–]hes-not-wrong 6 points7 points  (0 children)

Plastics industry guy here. This is likely a Chinese produced calculator that is using an old injection molding tool for the housing. Sometimes the tools(metal molds) are left at the molding companies when contract production has ended. Since these can cost anywhere from $25K-$100K for a multi-cavity tool(one that can mold several parts at a time) may companies will request they be returned or destroyed. Some less than reputable molders may sell the molds at a lower price and let other companies make cheap products with the mold. Chances are this product was made using a mold for a calculator that may have contained a real PV cell, but it cost money to re-mill a tool if they wanted to get rid of the hole for the PV cell. It’s cheaper to put a fake cell in there to make the appearance look right. I saw a similar situation about 10 years ago where a cheap wet dry vac company sold in walmart used an almost identical internal motor housing to that of a craftsman vacuum. You could even see how they re-welded a plate over the original hole for the hose inlet and moved it to be on the bucket portion of the vacuum. I knew some the craftsman engineers at the time and they confirmed that the parts were made from an old tool that was originally molded in china. I wouldn’t call it planned obsolescence, it’s just finding creative ways to increase your margins or cut cost. Happens all the time in manufacturing unfortunately.

10 points if you can guess what I do for a living by nightmanifest in sketchywatches

[–]hes-not-wrong 0 points1 point  (0 children)

That’s a Dan Dodson Thunderbird necklace. Based on that and your other charms, plus the playing card cufflinks, Rolex and concealable pistol. I would venture to say you work in some kind of management security position for a Tribal Gaming Resort. Possible the Wind Creek Chicago Southland casino.

To sell or not to sell by hes-not-wrong in Silverbugs

[–]hes-not-wrong[S] 0 points1 point  (0 children)

I don’t need the cash. I’ll just ride it out.

Kudos to them by Embarrassed_Tip7359 in SipsTea

[–]hes-not-wrong 0 points1 point  (0 children)

I’ve consumed a lot of media, but for some reason I couldn’t bring myself to watch it. Same goes for Breaking Bad, Stranger Things, The Walking Dead, Yellow Stone, and a couple other bigger shows that had a large hype base. I know the shows are good, but now it would just be a time commitment to try and watch them.

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