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Comment Re:Advertising and greed (Score 1) 139

Personally, I would be delighted if Netflix dumped all the shows from traditional networks.

Netflix probably won't do that because they'd be leaving a segment of the market unserved and that would open up a very large opportunity for a competitor.

They would be doing to themselves what Blockbuster and Hollywood did when they ignored the streaming content model.

Perhaps what they need is a better interface so that people like you, who aren't interested, don't have to see that content but people like me, who watch it, can find it easily.

LK

Comment Re:Catastrophic man-made global warming (Score 2) 239

Perhaps, perhaps not. Venus is still very poorly understood. In its high temperature environment its conditions are largely self-sustaining (preventing the sequestration of CO2 in rock), although it's also unstable, prone to broad temperature and pressure swings. It also appears to have undergone a global resurfacing event about 300-500mya, if that gives a clue as to how unstable the planet as a whole is. ;) We don't know what caused it, or really anything about it. Part of the planet's properties are now a result of it having lost its water rather than being a cause, such as its hard crust. Obviously its lack of a magnetic field is responsible for its loss of water, but we don't know exactly when or why it disappeared (there are of course theories... I had always just assumed it was the slow rotation rate, but the last research I read suggested that not enough to account for it). Other issues as to how Venus ended up as it did may be related to size - although it's only a bit smaller than Earth, that may be the initial factor that set its fate in motion - for example, its lithosphere in general appears to be thicker and higher viscosity on Earth, which could have hindered or prevented plate tectonics, and thus subduction of carbonates.

Either way, it's a mess now at the surface (though rather comfy ~55km up ;) ). And I'm not so sure I buy into some of the proposed ways to fix it (terraforming). For example, some have suggest mass drivers ejecting the atmosphere. Let's just say you can pull it off, and then you start building oxygen in the atmosphere - what happens next? The crust is something like 7-9% FEO; it's going to rust away whatever oxygen you make in short order.

Interestingly, I'd argue that this is possibly the salvation to Sagan's airborne-microbe concept for terraforming Venus. The main criticism is that if you engineered some sort of carbon-sequestering microbe on Venus (or artificial equivalent), you'd end up with a deep surface layer of graphite surrounded by some hugely hot, dense oxygen layer, and the atmosphere would explode. But that would never happen; at Venus surface temperatures and pressures, the surface rocks would rust away the oxygen as fast as it was created, even in tiny quantities, with the wind blowing the dust around to collect at low/eddy areas. So you're laying down bands of carbon and iron oxide as you burn through the planet's iron buffer. Where have we seen this before? Right, Earth, ~2,3 billion years ago, banded iron formations. Just like on Earth, you'd eventually burn through the iron and start to accumulate oxygen. But by then the graphite is already underground, buried in iron dust.

It's not a fast process. But it has precedent. Microbes already rusted at least one planet, and that planet's surface conditions weren't nearly as favorable for rusting as Venus's.

Comment Re:What an idiot (Score 1) 253

Has it ever crossed your mind what would happen if you got hit by a bus?

Every organization should have a "Won the powerball" or "Hit by a bus" insurance policy of some sort. Namely, a second or third person with the same level of access to every system.

Allowing one person to have the power to cripple your organization is a recipe for disaster.

LK

Comment Re: What an idiot (Score 3, Insightful) 253

Part of being competent at your job is loving your company and what you do.

What kind of Stockholm Syndrome bullshit is this?

I'm good at what I do. I enjoy what I do. I'm on good terms with my employer but I do not love it. It's misguided and unhealthy to love a company. A company won't love you back. A company can't love you back.

LK

Comment Re:Catastrophic man-made global warming (Score 0, Troll) 239

I don't know how China managed to melt so much arctic ice, leading to the absurd situation that just a couple days before the winter solstice this year I went on a hike through the snowless mountains in Iceland among chirping songbirds digging for worms. All I have to say to China about this is: Best. Conspiracy. Ever. Well played, China. Well played.

Comment Re:So what. (Score 1) 301

It's clearly a generational thing. Many older individuals can't seem to understand that dvds are inconvenient.

It's more likely that the older individuals have already lived through the death of a service and don't want to experience that particular inconvenience again.

Do you remember when DIVX went belly up?

LK

Comment Re:News from other countries... (Score 2) 45

Well, when it comes to space budgets....

NASA: $19,3B
ESA: $5,8B
Roscosmos: ~$2B/yr
JAXA: $2,0B
CNSA: $0,5B official / $1,3B est.
ISRO: $1,2B

It's not just US bias that leads to most stories coming from NASA. NASA really does spend the most on space research and exploration, by large margins.

Still, the public perception is that NASA's budget is far more than it actually is.

Comment Re: Note that what's large... (Score 4, Informative) 82

Venus has multiple "tropopauses" and "stratospheres", depending on how you define them. The atmosphere is like a layer cake with multiple convection zones (like Earth's troposphere) separated by areas of dynamic stability (like Earth's stratosphere). And again, ~50-70km is an awfullly long way from the surface, and surface winds are weak. But, there's a lot about Venus that we don't understand.

Comment Note that what's large... (Score 3, Informative) 82

.... is the size, not the intensity. The air moves only slightly faster or slower than the surrounding atmosphere as one passes through the wave.

They weren't expected on Venus, though. Venus's surface is dozens of kilometers down, thick and "soupy" there, transitioning to thinner layers above. It was surprising to see that surface features that far away, in a fluid that can compress, would still make clear phenomena like gravity waves in the high atmosphere.

Comment Am I the only one... (Score 5, Interesting) 129

.... who can't help but cheer at my screen when they nail one of those landings? Now I finally understand how sports fans feel when they watch a game and do the same thing ;)

One thing nobody can deny about them is optimism. ;) Seriously, their IPS numbers are, pardon the pun, out of this world. $200k per booster launch. $500k per tanker launch. I mean, really? Good luck with that. No, seriously, good luck with that; I won't be expecting anything close to that, but please by all means prove me wrong ;) ITS would be a great system to have, I've been playing around with some Venus trajectories with it recently. Looks like it can do a low-energy transit with nearly 300 tonnes of payload from LEO and back again with the same, over 400 if starting at a high orbit - but from an economics perspective the high energy transfers actually make more sense.

I noticed a lot of people were confused about why Musk wanted the trips to be so short and was willing to sacrifice so much payload to do so - many assumed it had to do with radiation or something. But the issue is, when your craft costs so much but your launch costs are cheap, you can't have it spending all of its time drifting in deep space, you need to get it back for a new mission as soon as possible. There's a balancing point, in that if you try to go too fast, you reduce useful payload below the point of making up for it with going faster - but a minimum energy trajectory is just not optimal when the ratio between launch costs and transit vehicle cost is so extreme. I come up with the same thing from Venus as they were getting for Mars, although for the Venus case you end up aerobraking to a highly elliptical orbit rather than to the surface for ISRU refill (you need ISRU, but for the ascent stages, so it's not realistic to do so for the return stage in the nearer term). So for Venus they get no refill like on Mars, but they also don't have to do a powered landing nor do an ascent on return - it's six of one, half a dozen of the other. Both are quite accessible with it.

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