Counterfeits Parts, eBay Scammers, and Amazon Shills

Anyone who spends any time on the internet has one eye peeled for scammers. I've used eBay for many years for many online purchases and have generally had a good experience. Usually it's small stuff like like LEDs and bike parts for the DateTrike, coax connectors and cable for my radio, new or used test equipment, or [...]

The COVID Endgame: Elusive Herd Immunity and Relative Risk

Today all people 16 and older are eligible to get a COVID vaccination. Nationwide, about 40% of us have had at least one dose of vaccine, with >80% of those over 65 at least partially vaccinated, and more doses are coming fast and furious. It's time to contemplate how this all comes to an end. [...]

Quick COVID-19 Math

Due to the scarcity of tests across the country, hospitals usually only test those cases that they need to admit to the hospital.  The hospitals are not testing the majority of people complaining of symptoms, nor the many possibly infected asymptomatic people.  We need to keep this fact in mind when looking at the statistics [...]

The Climate Train Wreck – A Review 2019

After decades of complacency, climate change is rearing its ugly head and people are taking notice.  Political will, if not quite yet possible, is nigh, so it is time to make an overall climate assessment.  Let's see where we are, where we are going, and what we can do about it.  Our global response to [...]

Twinning Intelligence

We have entered the age of "pretty smart" machines.  There have been some showpieces in the form of Jeopardy's Watson and recently the game playing AlphaGo and AlphaZero machines that far and away bested the best human players at their game.  Notably, unlike previous game playing machines, AlphaZero was never programmed on how to play [...]

States Must Adopt EU Pesticide Regulations to Stop Insect Extinction

The world is in the midst of an insect extinction crisis.  We've all heard about the plight of bees, but the plight of all insect fauna is much less widely appreciated.  The figure below is from a report in Science  a few years ago showing the precipitous decline in insects worldwide.[1] What beekeepers and naturalists [...]

Metamodern Meditation

I only recently ran into metamodernism, the new kid on the block ready to sweep postmodernism into the dust bin of intellectual movements.  This isn't my usual bailiwick, so it took me by surprise that I was pulled into this obscure corner of cultural criticism.   What's brought me here is the paucity of reasonable discussion these [...]

Threshold mechanisms in acetylcholine pathway insecticides and environmental safety

Overview Previously we looked at some of the basic principles of nervous system function and how chemicals from several pesticide classes disrupt normal function.  This time we will look in detail about what we can expect for a dose-response characterization of acetylcholine pathway insecticides based upon their mode of action and properties of the nervous system. [...]

EPA’s Proposed Imidacloprid Exposure Limitations are Not Strong Enough

Our comment letter to EPA follows below.   OPP Docket Environmental Protection Agency Docket Center (EPA/DC), (28221T) 1200 Pennsylvania Ave. NW. Washington, DC 20460-0001   Re: Pollinator Ecological Risk Assessments: Imidacloprid Registration Review EPA-HQ-OPP-2008-0844   To whom it may concern, We would like to offer some comments on the regulatory endpoints that are proposed in [...]