Category Archives: Technology and Society

Business, Health, Science And Society, Technology and Society

Telomere Extension

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…turns back aging clock in cultured cells:

“This new approach paves the way toward preventing or treating diseases of aging,” said Blau. “There are also highly debilitating genetic diseases associated with telomere shortening that could benefit from such a potential treatment.”

Blau and her colleagues became interested in telomeres when previous work in her lab showed that the muscle stem cells of boys with Duchenne muscular dystrophy had telomeres that were much shorter than those of boys without the disease. This finding not only has implications for understanding how the cells function — or don’t function — in making new muscle, but it also helps explain the limited ability to grow affected cells in the laboratory for study.

The researchers are now testing their new technique in other types of cells.

“This study is a first step toward the development of telomere extension to improve cell therapies and to possibly treat disorders of accelerated aging in humans,” said John Cooke, MD, PhD. Cooke, a co-author of the study, formerly was a professor of cardiovascular medicine at Stanford. He is now chair of cardiovascular sciences at the Houston Methodist Research Institute.

“We’re working to understand more about the differences among cell types, and how we can overcome those differences to allow this approach to be more universally useful,” said Blau, who also is a member of the Stanford Institute for Stem Cell Biology and Regenerative Medicine.

“One day it may be possible to target muscle stem cells in a patient with Duchenne muscular dystrophy, for example, to extend their telomeres. There are also implications for treating conditions of aging, such as diabetes and heart disease. This has really opened the doors to consider all types of potential uses of this therapy.”

I wonder if there’s some political reason they won’t use the R word? Anyway, faster, please.

Business, Economics, Media Criticism, Political Commentary, Space, Technology and Society

My Initial Project Status

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For those not backers, but interested in what’s happening, I did a project update this morning:

I’m starting to spool up on the project (I expect to actually be funded this week — there’s a two-week delay after the close). Leonard David has a report today that the “Affordable Mars Strategy” report has been published and is available for free download [note: I haven’t actually been able to find the download — all I could find at Leonard’s link was Scott Hubbard’s op-ed — but I think I have the report]. I’ve also been in communication with the authors (specifically, John Baker and Nathan Strange at JPL), and received a lot of material from them last week (some of which may be redundant with the report). I’m planning a trip to Denver next week to (among other things) talk to folks at ULA about integrated vehicle fluids and propellant depots.

The JPL work will provide a foundation for my own analysis, and I’ll probably be discussing it with them. While I think they have a good solution for what they perceive to be their problem, I have fundamentally different top-level requirements.

I would characterize their approach as “Apollo to Mars”: A destination, a date, civil-servant boots on the ground, with a giant government-owned-and-operated rocket, except (unlike Apollo) it is budget constrained. I don’t think that will be any more economically and politically sustainable than Apollo was. I also think, bluntly, as a taxpayer and space enthusiast, that it would not be worth the money.

My approach is to get NASA completely out of the earth-to-orbit business, and to take the savings to develop the technology needed to build a scalable in-space reusable, resilient, affordable transportation architecture, that will enable not simply NASA, but anyone else who wants to, to go to the Red Planet.

And not just to Mars.

Business, Space, Technology and Society

SpaceX Failure Effects

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They have a long list of customers left in the lurch.

[Update a few minutes later]

Another story, from Eric Berger, with political implications.

[Afternoon update]

New details emerge:

The Falcon 9 was at an altitude of approximately 45 km and traveling in excess of 5,000 km per hour when a problem developed in the second stage. SpaceRef can confirm from sources within SpaceX that the Falcon 9 first stage performed nominally i.e. as expected. Indeed, if you watch launch video, you can see that first stage continues to function steady and stable even while the front end of the rocket was destroying itself. That in and of itself is impressive.

According to SpaceX sources telemetry received from the Dragon spacecraft showed that it too was functioning normally after the mishap occurred and this telemetry continued to be sent back from Dragon for a significant period of time.

Despite an earlier statement from NASA to the contrary, SpaceX sources now confirm that the U.S. Air Force Range Safety Officer did initiate a destruct command but that this command was sent 70 seconds after the mishap occurred, as a formal matter of process. There was nothing left to destroy at that point.

That’s probably what confused Senator Nelson, when he said this morning that the Air Force had destroyed the vehicle.

Business, Media Criticism, Political Commentary, Space, Technology and Society

The Falcon Failure

66 Comments

I overslept. Just got up and saw my Twitter feed.

My immediate thought: This makes is a lot harder to sell my thesis that we need to start flying crew ASAP. I haven’t changed my mind, but I’ve never claimed that it would be safe to do so, just that it was important to do so. My second thought: Would the launch abort system have worked for this event? I really am surprised at this.

[Update a few minutes later]

Unfortunately, it happened before stage separation, so they didn’t get to even attempt a landing.

[Update a couple minutes later]

[Update a few minutes later]

Second question (per Henry Vanderbilt’s comment): Could capsule have separated absent an LAS? Was the Dragon destroyed by range safety itself?

[Update a while later]

Some video, sent by my book editor.

[Evening update]

Thoughts and history from Stephen Smith:

Humanity reached the Moon in 1969, yet failures and fatalities still happen. They always will.

Today I met a 12-year old from a Colorado middle school who had an experiment aboard SpaceX CRS-7. I told her I was sorry she lost her experiment, but she was undeterred. Grinning from ear to ear, she said, “We’ll build another one and do it again!”

As he notes, so will SpaceX.

[Update a few minutes later]

A good balanced take from the WaPo.

Business, History, Media Criticism, Political Commentary, Social Commentary, Technology and Society

Why Apple Pulled Civil War Games From Its App Store

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Because it was afraid of the Internet:

No rational person would complain that there were Civil War sims. No sensible person would believe that society would be improved by demanding their removal. No emotionally stable person could think that they were safer now because someone, somewhere, would not get updates to a game they purchased that allowed them to fight as the Union Army but contained the sight of the Confederate flag. Anyone who would believe these things is tethered to reality by a frayed strand of dental floss, and while they may live in a comfy bubble where everyone believes the same things and has at least two friends who are doing very important work in the field of instructional graffiti, most people are stable enough to resist the siren call of the Stars and Bars, even in the form of a picture on a phone.

But. The loud people may complain. The company would have to explain. An explanation would be seen as a justification.

Of course there are nuances to this; Apple is working with developers to use a different, earlier flag, according to some reports. Because that’s the issue, right? Finding an acceptable flag to represent a slave state? As I noted elsewhere, the app store still has a game that lets you simulate the USSR, including an in-app purchase that lets you fine-tune your oppression settings. One could say this is okay because the USSR was an equal-opportunity killer, just as the repression settings in “Tropico” are hunky and / or dory because you’re putting the screws to your own people. If that’s the case, then they have decided that American Slavery is not only a unique historical event, but something whose magnitude and uniqueness sets it apart from every other act of state oppression and governmental violation of human rights. The enslavement of an entire population is not offensive, per se, because it’s color-blind.

I mean, sure, go ahead, make that argument. And if that’s the case, then my Roman Slave Merchant Sim should get brisk approval, because the Romans didn’t care who they enslaved, and also had the option to buy your way out. They practically invented the in-app purchase, in a way.