e2e8
Joined 15 years ago
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278
Submissions
113
Member since
Sep 9
Recent submissions
Comment · 6 hours ago
another video about the painting https://www.youtube.com/watch?v=gy76ERat1zg
Comment · 4 months ago
This video [0] tries to answer the question of how we know what we know for a different species but I imagine the methods are similar.
Comment · 4 months ago
That sounds like the array modifier in Blender
Comment · 2 years ago
As the parent says, the goal is to have NET 0 emissions. Certainly some emissions will still occur but they need to be small enough to be offset by CO2 removal. Because it is almost always much easier to prevent emissions rather than remove CO2, preventing 100% emission from cars and their production is likely to be best path to NET 0.
Comment · 3 years ago
According to the EPA: "Hot water dissolves lead more quickly than cold water and is therefore more likely to contain greater amounts of lead. Never use water from the hot water tap for drinking, cooking, or making baby formula."
The applicability of this advice is probably quite variable.
[0] https://www.epa.gov/lead/why-cant-i-use-hot-water-tap-drinki...
Comment · 4 years ago
Several kinds of semiconductor materials are used for high power or high frequency applications but only at much larger process nodes. For example Gallium Nitride, InP, SiGe.
Comment · 4 years ago
Several (most?) brands do this. Do you know of a brand that definitely does not?
Comment · 4 years ago
Apparently they still make 3 unfrosted flavors: https://www.poptarts.com/en_US/products/all-flavors.html
Comment · 5 years ago
This article present some alternatives to PGP. https://latacora.micro.blog/2019/07/16/the-pgp-problem.html
Comment · 5 years ago
Abstract
Earth's Energy Imbalance (EEI) is a relatively small (presently ∼0.3%) difference between global mean solar radiation absorbed and thermal infrared radiation emitted to space. EEI is set by natural and anthropogenic climate forcings and the climate system's response to those forcings. It is also influenced by internal variations within the climate system. Most of EEI warms the ocean; the remainder heats the land, melts ice, and warms the atmosphere. We show that independent satellite and in situ observations each yield statistically indistinguishable decadal increases in EEI from mid-2005 to mid-2019 of 0.50±0.47 W m-2 decade-1 (5%-95% confidence interval). This trend is primarily due to an increase in absorbed solar radiation associated with decreased reflection by clouds and sea-ice and a decrease in outgoing longwave radiation (OLR) due to increases in trace gases and water vapor. These changes combined exceed a positive trend in OLR due to increasing global mean temperatures.
[0] https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021GL09...
Comment · 5 years ago
From the above cited paper:
In 2011, approximately 26.7 million tons of pollutants were emitted by GLGE (VOC=461,800; CO=5,793,200; NOx=68,500, PM10=20,700; CO2=20,382,400), accounting for 24%−45% of all nonroad gasoline emissions. Gasoline-powered landscape maintenance equipment (GLME; leaf blowers/vacuums, and trimmers, edgers, brush cutters) accounted for 43% of VOCs and around 50% of fine PM. Two-stroke engines were responsible for the vast majority of fine PM from GLME.
Comment · 5 years ago
There are at this point billions of cameras running continuously or within arms reach. Instead of speculating about silly eye witness reports, lets wait for the physical evidence to materialize. Look how many videos there are of the Chelyabinsk meteor.