- INVITE TO ORBITER PLUS
- INVITE TO ORBITER FREE
INVITE TO ORBITER FREE
You are free to say what you want, and I will only block your comments or ban you entirely if you spam the site (posts with more than one link are automatically held for moderation), if you post your own discredited/crackpot theories, or if you threaten other commenters. If I were ever held responsible for the content of internet comments, on my blog or anywhere else, I would turn them off completely.
Pull the log sized beam out of your eye and get your own damn house in order before you pontificate social justice mantras." I often use your site to point out to people how NOT to moderate badly behaving commenters. Wow, Wow, Wow, and more Wow) you have some interesting nerve talking down to others about their toleration of bad behavior. Image credit: Getty Images / Via, of Geoff Marcy in 2002.įrom CFT on my inconsistencies: "Considering your own incredibly dismal record of keeping abusive language on your site comments under control (i.e. and yes, organisms with motility in their interiors is certainly not beyond the realm of the biochemistry we know of here on Earth. These are just potential answers, of course, because we don't know whether there actually is life on Mars or not.
So long as it could equilibrate with its environment - very salty water, or salty crystals when dry - there won't necessarily be a catastrophic pressure gradient. Organisms could potentially have rigid "wall-like" structures to them, like plant cells, that aren't particularly concerned with low pressures. Martian life could be at a greater sub-surface depth, where the pressure is higher and this isn't a concern. There are three answers to this, one of which Paul himself gave in a later comment: Image credit: NASA/JPL/Cornell/USGS, Mars Opportunity Rover.įrom Paul Dekous on life on Mars: "Air pressure on earth is 100 times that of Mars’, makes me wonder if life would explode over there? Some rocks, sand and crystals could hold tight but flexing organisms?" Hence, we arrived at the inevitability of special relativity. Of course, this turns out to be completely unphysical, as the only way you can physically have such a wave is if it propagates at the speed of light. Michael Kelsey gave a great answer to this, where he highlights the fact that it was Einstein's initial thought experiment to consider, "what would someone 'riding' a photon see," and then he considered watching electric and magnetic fields appear and disappear in an in-phase, oscillatory pattern. Red shift caused by the universe’s expansion would be another ‘internal clock’ (albeit a very slow one): a photon rider could hypothetically know how far they’ve traveled by measuring the frequency change during the traverse." Thus if one were ‘riding on’ the photon, one would be able to observe a sequence of changes (oscillations) in the internal state of the photon during the passage…and the number of oscillations would be related to distance. Image credit: Wikimedia Commons user Lookang.įrom eric on time for photons: "I’m not so sure this is right. Lots is going on here: the first Patreon-sponsored podcast is happening, I'm getting ready for Halloween, and the world is freaking out about what almost certainly isn't aliens around a nearby star! It's always important to look at what you've said, though, so it's onto our Comments of the Week! and Martian Gullies Were Carved By Water, Not Lava, And Now We Have Proof. Massive Neutrinos Aren't Just This Year's Nobel Prize, They're The Future Of Physics,. I also had a couple of new articles over at Forbes: and Don't forget Vesta! (for Throwback Thursday). The top 8 worlds in our Solar System for life,. How did Geoff Marcy happen? (a mess that needs addressing),. Water on Mars (for Mostly Mute Monday),. The NFL story you don't hear (for our Weekend Diversion),. How do photons experience time? (for Ask Ethan),. INVITE TO ORBITER PLUS
It's been a really eventful week, with topics from the fundamental to the cosmic all under scrutiny here at Starts With A Bang, plus an extremely controversial (and response-producing) story on the topic of Geoff Marcy, harassment and his eventual resignation. Because suddenly, if everyone else is cheating, you feel a need to cheat, too." - Stephen Covey And that can become a vicious, downward cycle. "The more people rationalize cheating, the more it becomes a culture of dishonesty.
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