antlion
@antlion@lemmy.dbzer0.com
- Comment on [NightHawkInLight] DIY Supermaterial Could Save You From Heatstroke: Salt based PCMs 1 week ago:
I was just thinking about this. Love these videos. Cooling of a solar panel is a good application, as long as it gets cold enough for long enough to re-solidify at night.
An alcohol/NaCl solution with a stabilizer can make an ice pack that freezes colder than water. That could be used to keep ice cream frozen in an ice chest.
It would be cool to have recipes for a few different temperatures. There’s a German company Qool Products that sells PCM temperature elements (ice packs), at a variety of temperatures, to store ice cream up to red wine/cellar temp in their ice chest. With some trial and error I guess we could now make our own!
- Comment on Pros / cons of riding a bike? 2 weeks ago:
There are plenty of protected lanes in my city, but they just hide bicycles behind parked cars, making it less safe at every intersection.
The only way I can think that might work better would be to convert a 3-lane road (with suicide/turn lane in center), into a 2-lane road. The center lane gets converted into a two-way bicycle road - raised up like a sidewalk with curved curb. No left turns allowed for cars, only right turns. This way bicycles are visible and protected.
- Comment on How do I verbally say 2.1 ng/kg 2 weeks ago:
Yeah it’s typically not used for dosages, rather it’s for concentrations in solution. However strictly speaking the grams cancel in the units of ng/kg and you are left with ppt. I think of ppm and ppt as very small percentages anyway. As per cent means part per one hundred. Can’t use “permille” because it means part per thousand but sounds like part per million.
In the case of a lethal dose, I think it would be fine to say, “it’s lethal at a rate of 2 trillionths of body mass”.
- Comment on How do I verbally say 2.1 ng/kg 2 weeks ago:
2.1 ppt (parts per trillion)
- Comment on [deleted] 2 weeks ago:
If you go 80 mph on the way there, and immediately turn around and go 60 mph on the way back, what is your average speed for the 160 mile trip?
Tap for spoiler
68.6 mph
- Comment on Biden Administration Tightens Mileage Standards to Buoy E.V.s | The new rule requires automakers to achieve an average of 65 miles per gallon across all models by 2031. 3 weeks ago:
Unfortunately it doesn’t really incentivize smaller or lighter vehicles in any way.
- Comment on Biden Administration Tightens Mileage Standards to Buoy E.V.s | The new rule requires automakers to achieve an average of 65 miles per gallon across all models by 2031. 3 weeks ago:
The average mileage for light trucks, including pickup trucks and sport utility vehicles, would have to reach 45 miles per gallon, up from 35.1 miles per gallon.
That’s a reduction from 2.85 gal per 100 miles down to 2.22 or a 22% reduction in fuel consumption.
The standards will also require heavy-duty pickup trucks, such as the Chevrolet Silverado 2500 HD, and large vans, such as Amazon delivery vans, to reach 35 miles per gallon by 2035, up from 18.8 miles per gallon today.
That’s a change of about 5.3 gal per 100 mi to 2.9 gal, or a 45% reduction in fuel consumption.
A Toyota Highlander Hybrid currently gets 35 mpg. To do over 20% less fuel it would need to be super aerodynamic, and lose about a ton of mass. Or it would have to be fully electric - the Rivian R1S gets 70 mpg equivalent.
- Comment on How do rainbows work? 3 weeks ago:
It’s explained pretty well in Optical Physics for Babies. Take a peek in the kids books section next time you’re at a book store. It also explains double rainbows, and why the second one has the colors in reverse order and is always more faint. This is a detail they got wrong in my favorite episode of Bluey: Rain.
- Comment on Biden to Allow Ukraine to Use U.S. Weapons to Strike Inside Russia | The permission is intended solely for Ukraine to attack military sites in Russia being used to attack the Kharkiv area 4 weeks ago:
I didn’t realize gifts of weapons came with so many Terms & Conditions. I guess they could have thought more carefully about those terms when supplying weapons to Israel.
- Comment on Flood water use 4 weeks ago:
In California we have a project called Flood-MAR, which stands for Managed Aquifer Recharge. Farmers who have land that wont be damaged by floods volunteer to pump lots of water onto their lands during floods. This reduces the downstream flooding slightly, and the water soaks deep into the ground for safe keeping until it needs to be pumped up during a drought.
- Comment on Does it seem odd to track my lifespan? 1 month ago:
If you use the actuary life tables for your expected lifespan, you can have a true mid-life crisis when you turn 39 or 41 depending if your male or female.
Or if you’re the age of one of the presidential candidates you’ll know what it feels like to have under 10 years of life expectancy remaining.
Anyway, I do think it’s weird. You have plenty of time to waste at your age. It would be a misuse of your youth to try and allocate your time wisely.
- Comment on How come liberals dont hate conservatives the way conservatives hate liberals 1 month ago:
I hate racists and bigots, but there’s not much to be done about it. Stress and anger will take years off your own life - don’t let them harm you. On the other hand if you can troll them a bit, you may be sending some of them to an early grave, just with words. It’s not hard to do they’re triggered by anything gay, reparations, dominant women, intelligence and education, health foods, immigrants, solar power, and so on. So you don’t really have to send them any hate, you just need to be an example of the world you want to live in and they’ll rage about it.
- Comment on [Serious] Why do so many people seem to hate veganism? 1 month ago:
There is no life without death. In order to feed vegans, countless insects must die. In order for agriculture to exist in any form, we must wage war against nature (and win). For example, coconut oil is a terrible vegan product. If vegans are complacent about killing insects and ravaging natural habitats, why not kill and eat crustaceans and mollusks - they’re not all that different in terms of neurons. We can keep stepping up the level of consciousness - fish, etc… when does it become unacceptable?
The next question I would ask, is whether death is always equal to suffering. Death can be painless. Some vegans don’t eat honey because many honey bees are treated horribly. What if they’re not? Also, if you feel that way as a vegan, you shouldn’t eat anything pollinated by bees (try not to starve). Some animals have good lives and painless deaths. If there’s no financially viable market for animal products of happy animals (by vegan boycotting), we’ll be left with only industrial animal agriculture. Do you think a deer would rather be ripped apart by a puma, hit by a car, shot by a bullet, or become elderly and senile - abandoned by the herd to die alone in a field, picked apart by buzzards. Nature is brutal as fuck. Death by human is not the worst outcome for many animals.
The final thing I’d assert is that animal agriculture has an important role in the overall food system. Pigs, cows, and chickens are fed a lot of agricultural byproducts, like spent brewing grains or corn stalks, and their manure is used as non-petroleum fertilizer. Many animals are raised on land that is too hilly and rocky to farm any other way. Our industrial food system is like a artificial ecosystem of its own. Each piece of the industrial food web has a role, and you can’t simply remove all the animals - you’d be overwhelmed with green waste, reliant on petroleum fertilizer, and many would go hungry.
Ethical veganism is idiotic because it places human morality onto nature. It’s a child-like misunderstanding of the real world. The reality is that for you to be fed, the natural world will suffer. Don’t draw a line in the sand and think you’re living a better life. You’re an ostrich with your head buried in sand.
Freeganism on the other hand, is something we could use a lot more of (25-50% more). The only thing worse than raping and killing animals to feed ourselves, is that there’s so much abundance that we throw a lot of it in the trash. Freegans understand the real crime against nature is food waste.
- Comment on [Serious] Why do so many people seem to hate veganism? 1 month ago:
Everyone, the answer to the thread is right here.
- Comment on A Difficult Game About Climbing is a difficult game about climbing 1 month ago:
If his legs are just gonna flail, should have just made him a double amputee.
- Comment on Which is the best Lemmy app for mobile? 1 month ago:
I just switched from Memmy to Mlem
- Comment on California law would give employees the 'right to disconnect' during nonworking hours 2 months ago:
The law as proposed allows them to contact employees for emergencies or for scheduling. So as long as it’s about scheduling employees can’t safely ignore it.
- Comment on Alright, where do I begin? 8 months ago:
The Orville feels like a very good update of TNG at times. They deal with a lot of cultural drama with analogs to our current society. And upping the humor a bit helps.
- Comment on Alright, where do I begin? 8 months ago:
Blasphemy warning…
I’d probably start with Strange New Worlds. Then go back for TNG, DS9, and Voyager.
- Comment on how do i pick out a good avocado 8 months ago:
Avos can bruise before they are soft. The bruises go sour before the whole fruit is soft. Most grocery stores absolutely abuse the fruits. Find a store that doesn’t. Look for a single layer, not a pyramid, heap, or pile. Costco keeps them in the flat boxes.
Anyway the restaurants buy them wholesale and they’re cared for in nice flat boxes so they can ripen beautifully.