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... And as an over 70 , I got a call today to attend Friday week for a Booster!.. so no the 2 jab Pfizer defines fully vaccinated . The 3 jab will be fully vaccinated plus.

We have had fusion reactors since the start of the bikini age ... The only trouble is throttle control. But a interstellar craft can have a very very long boom, to carry the boom!

A plasma stream is still matter.

Each of these mechanisms does use action reaction.

I don't see that there is any alternative to ejection of material out the rear in order to move the opposite direction . Of course the choice of material and the velocity at which it is expelled can be changed , but the equations of motion don't really change . Even the change from propellor...

Not at all... Relativistic effects are minor below 1/2 c . . . look I fully agree with Woosh. and to a certain extent with you.... the is little benefit in sending men up , but there is a benefit in sending machines and instruments. The antics of Virgin, and the other characters is not even...

Believe it or not but Scientific American did that calculation in 2008... To link in with Star Wars Movies. They made the conclusion that unless the acceleration was under 3G or 30 metres per sec 2 , that the person would sufficate. . .9 G is what astronauts and fighter pilots can survive for...

Even though you have 15 years on me, my childhood experience was no different... . Last year with Covid , I decided to grow my own lettuces in plastic buckets .. had i realised just how easy it was, I should have done it a decade earlier. However the Rocket has gone feral and its growing in...

But Oyster, half that radio iodine is totally gone and is a completely different atom within the week. So it is depleted at the rate of about 15.0% per day, without any reference to dynamics. The Xenon is an inert gas and just evaporates . At the molecular level its all about dynamic...

The Ph.D in Physics occasionally comes in useful.

The radioactive iodine has a half life of 8 days and decays into Xenon. The beta particle at 660kev will do a lot of damage . . Because the half life is short it is very potent., and the thyroid a very important gland. Now there is always a dynamic equilibrium between atoms in solution , so...

Social media is calling bluff on the Centers for Disease Control and Prevention for modifying its definition of the words “vaccine” and “vaccination” on its website. Before the change, the definition for “vaccination” read, “the act of introducing a vaccine into the body to produce immunity to a...

No flecc.. I disagree with your definition of a vaccine . It is marvellous if it indeed stops infection in its tracks, but all it really needs to do is give the person's immune system a fighting chance of ridding the infection . And this the current vaccines do. So I would view them as...

My take on this is that both a real infection and a vaccine induced mini infection create identical antibody loads. , But with the difference being that the payload of damage doesn't usually happen with the vaccine. Moreover the vaccine is a calibrated dose, whereas the real infection could be...

Just coming to the end of my years dosage of Plavix , for the stents. I had a few odd events .. .about 4 months ago, I picked at a tiny pimple on my shoulder and went to bed. By morning my Pillow, Vest, was destroyed with blood, as was the sheets and the mattress is now on the reverse side...

Flecc.. there IS more than the the UK in the world, and the 28 day nonsense is only confined to the UK ( actually Michigan did the same thing once). The 2% is a global figure based on aggregate data around the world ,from official data..and is just as good as that. The Irish data is in my...

Flecc, there is something Kafaque or Orwellian in implying that being hit particularly hard with a serious illness ,for which no treatment existed is a" benefit. " The only time where that could have validity is if the illness was going to morph into something more deadly. If anything because...

I can see where these errors come from... . If meter has rolled over on the most significant digit...

Except flecc that the supposition that 97% don't suffer is whistling past graveyard stuff... . We know that 2% + actually die , we know that some other fraction have long covid and others have pre existing conditions made much more serious. I don't have figures for these fractions. Moreover we...

My interest is more focused on Ireland and the EU. The vaccines are working in Ireland . They are not designed to prevent transmission (yet), but are extremely effective in reducing hospital admission. There is at least a 40 fold reduction in hospital admission for those vaccinated. They do...