billvon

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billvon last won the day on November 26

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About billvon

Gear

  • Main Canopy Size
    129
  • Reserve Canopy Size
    143
  • AAD
    Cypres

Jump Profile

  • Home DZ
    san diego
  • License
    D
  • License Number
    16479
  • Licensing Organization
    uspa
  • Number of Jumps
    6000
  • Years in Sport
    22
  • First Choice Discipline
    Freefall Photography
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    500
  • Second Choice Discipline
    Formation Skydiving
  • Second Choice Discipline Jump Total
    2000
  • Freefall Photographer
    Yes

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  1. billvon

    covid-19

    Interesting! I knew it wasn't from Fauci but I had seen it recently enough that I thought it was specific to COVID.
  2. billvon

    covid-19

    I forget which science-minded person this was, but someone was talking to an anti-masker/anti-vaxxer about why both are important, and he said he got to a point where he didn't know how to explain to the anti-vaxxer that they should care about other people.
  3. Tell me about it! I know several women who bitch about rape all the time, even though it's illegal. I mean, isn't that enough for them? Heck, people even bitch about illegal immigration; you don't even have to look that up to know it's illegal. The word is right there. What more do people want?
  4. billvon

    covid-19

    Yep. At most it gives us a little more time. I'd be willing to bet, though, that there are dozens of omicron cases in the US right now.
  5. billvon

    covid-19

    But the UK has two cases of this variant; South Africa has 3000. So I can see a difference in response. Travel bans do very little to stop spread; there are just too many other ways for the virus to get anywhere. I would hope this round of bans expires when omicron shows up in the US.
  6. Lift is the net force acting on an aircraft to oppose gravity; it always acts perpendicular to the oncoming flow. In stabilized and fixed-altitude flight, lift exactly cancels weight (mass times gravity.) However, if you're in a turn, the lift vector is no longer vertical; it now points a little in the direction of the turn, and is the force that causes the aircraft to change its momentum vector. Also if you are descending it tilts forward a bit. That's why ram-air parachutes glide, because the lift vector provides you with some forward force to maintain your speed (against your drag.) The term "speed" is fraught with peril when talking about airspeed. Indicated (IAS) airspeed is basically how much air you are passing through per second. The higher you are, the less air there is, so the same speed gives you a lower IAS. It also determines things like lift and drag. Ground speed is how much ground you are covering, and can be different from IAS both due to altitude and descent angle. The true airspeed (TAS) is how fast the aircraft is moving relative to the air around it; it is the closest to what you are talking about above. But that only matters with respect to the air you are in. If you're about to hit the ground, what you care about is your velocity vector relative to the ground, and like you mention the energy goes up as the square of (relative) speed. And even then you probably care more about the vertical component of that velocity vector rather than the horizontal component (or even total magnitude.)
  7. Happy Thanksgiving everyone. I hope everyone gets a chance to relax with family and friends before plunging back into the malestrom of Black Friday/Christmas preparation.
  8. Yep. And back then, the hue and cry about transgender people being in the "wrong" prison came to very little as well.
  9. Last generation telling the next generation "you're all a bunch of pussies! You're not tough and cool like we were! Now get off my lawn" is a timeless tradition in conservative circles.
  10. In 1980, the norm in California was to place transgender women in women's prisons, and transgender men in men's prisons. They based it on genitals, not biology. So yes, this has been going on for decades (and we've been dealing with it for decades.)
  11. billvon

    covid-19

    It does significantly reduce infection rates, though, and people who are vaccinated are less likely to transmit the disease if they catch it due to less serious symptoms. That's the good news. The bad news is that the vaccines do not confer as long-lasting a protection against infection as hoped for - and all three vaccines are less effective against Delta than against the original strain. (They DO confer long lasting protection against serious illness or death, however, due to the immunologic memory they create.) In a recent Oxford study, patients who got the Astra-Zeneca vaccine were just as likely to become infected as the unvaccinated three months after vaccination. Pfizer vaccines still maintained significant protection against infection three months later, although that protection had declined by about 50% from its peak, which occurred a few weeks after the second vaccination. What that means is that if you look at a population that's been vaccinated nine months ago with Astra-Zeneca their odds of infection are going to be about the same as the unvaccinated. And if their behavior becomes more risky as a result (i.e. "I'm vaccinated! Let's party!") then you could even see more infections in that group.
  12. billvon

    covid-19

    I'm waiting for "yeah - but look at Slovakia! Fauci can't explain THAT with his vaccine insanity!"
  13. Due to their gender identity? Or due to the fact that they are criminals? I mean, if someone associated you with the Nazi demonstrators at the Charlottesville Rally I assume you would take offense, and point out that just because you were on the same side of the aisle as those people, it did not mean you actually had anything else in common with them.
  14. You mean - like trying to trash an entire field of study (or even an entire religion) due to their outrage and moral indignation? I never knew you considered yourself so woke!
  15. Of course. Music does not drive culture; music is, however, a product of culture. And the culture that produced that music included quite a lot of transgenderism. (Even if people ignore the words, few people of that era have not seen Boy George.) Many people were no doubt ignoring it and hoping it would go away. But the idea that this "gender identity" issue is a new phenomenon that will wreak havoc with our society is, like I said, pretty funny. Again, no - see above. Also note that all the transgender people who we are seeing now who have transitioned did so years, often decades, ago. It IS likely that, like Pride parades, conservatives have simply been able to ignore it until now. Now that it is more difficult to ignore, they have gone from ignoring it to the same "Stop shoving it down my throat!" cry that they used while gay marriage legalization was in process.