HomeCommunity ContentScience SundaysScience Sunday #3
newest oldest most voted
Notify of
peachpi
peachpi

Thanks bebimbob, that last bit about special relativity was fun. The Jupiter info is fascinating but the foreboding music is a bit much. I married into a science family and that has greatly increased my appreciation of scientific thought in general, but I’ve always had a soft spot for theoretical physics.

riverlover
riverlover

It was also announced this week by ESA (European Space Agency) that the little satellite who has spent the last two years rotating around a comet will be retired Sept 30, by controlled landing on the comet’s surface. They had deployed a lander, also controlled, that unfortunately tumbled into a crevasse on the comet’s surface and could not get enough solar PV to give information. But Rosetta will be wandering off with the comet, a fitting ending.

riverlover
riverlover

Science-brain here. Some FB article called Hawking a theoretical physicist. Which he is. But an interesting juxtaposition of words.

polarbear4

Oooo, fun. I like the way NASA is using a sort of Sci-Fi approach to make it more interesting. very cool.

And everything else, especially relativity and animation.

This is the kind of diary to return to all week, like the Terrace cafe.

Bern_So_Good

Thanks for a great post!

riverlover
riverlover

That laminar flow hood is packed with machines. We always tried to keep ours cleared out. Of extraneous stuff. No longer extraneous. I have only been out for 8 years, and could never catch up. Plus I have early hand arthritis from damned micropipets like in the photo. Repetitive motion. Crazy to spend hours placing microliter amounts of solutions in tiny tubes. Robots do it better now.

Star Strider

DNA immunizations scare the _____ out of me!

That somatic cells express these foreign antigens could create the ideal environment for devastating self-sustaining and ultimately fatal autoimmune syndromes of the sort never previously described. Naturally-occurring autoantibodies to DNA are the mechanism of systemic lupus erythematosus.

Additionally, if these DNA immunizations infected the germ cells (progenitor cells of sperm and ova), the DNA would be transmitted to one’s offspring, with unpredictable results.

Be afraid, Be very afraid.

I hope DNA immunizations are never approved for human use.

riverlover
riverlover

I think that germ cells (in females, for sure) are not exposed to the immune system when they are formed in utero. And so far, AFAICT, no human DNA immunizations have passed muster by our captured FDA. Many antigen immunizations likely contain fragments of DNA, some from human cell culture. I know rabies vaccines are prepared from human cell culture.

Worry more about CRISPR/cas-9 genomic editing. That is beyond the price point for most of us.

Star Strider

Germ cells in women are exposed to the immune system and are subject to immune attack, the mechanism for premature ovarian failure. Sperm are usually (but not always) shielded from immune system attack. DNA from immunization vectors definitely could be incorporated into sperm, and into fertilized ova when cell division begins.

Both viruses and antibodies cross the placenta, antiphospholipid antibodies being responsible for some neonatal arrhythmias.

Genomic editing is worrisome, but difficult and still impractical for any widespread application.

riverlover
riverlover

That immune attack in adult women is not the same as the timing of formation of ova, pre-birth. Grandmother’s strongest signal.

LieparDestin

Skip to toolbar