Category Archives: technology

New developments in stem cell research

In our post Breakthrough artificial egg cells we discussed the possibility to create egg cells from skin tissue. In that article we asserted that one of the main advantage of this development is the possibility to avoid surgery to collect egg cells from a woman. However, this procedure still require a biopsy.

But science, especially in the field of stem cell research, is making fast progress. According to the science daily scientists have succeed in harvesting stem cells from urine. The importance of this development is clear, taking urine samples is one of the most convenient medical procedures (from the prospect of the patient/donor).

If scientists can succeed in creating egg cells from urine stem cells, then egg cell donation will become as easy as sperm donation. Since urine samples can be collected everywhere, this also allows to circumvent strict laws against (commercial) egg cell donation which are enacted by some countries.

In my post Alternative for Abortion I discussed Robin Baker’s proposal for a new system of contraception. In this system people are sterilized at young age, while their gametes are stored ex vivo. However, this would involve two invasive medical procedures in case of women. The possibility of creating egg cells from stem cells extracted from urine, will make this system of contraception much more attractive

3D Printed organs: future or fantasy?

The Guardian has published an interesting article about using 3D printers for creating human organs. The idea is quite simple: if you have the required tissue types, the 3D printer is able to print the organ you want. Organs are three-dimensional structures, and because they are standardized, their structure could be stored in a computer file.

Combined with the ongoing developments in stem cell research, this technology might make organ donation obsolete by 2050. This is great news for space colonists, at least if they would need an organ transplant in outer space. If an organ needs to be sent from Earth, it would take months before it arrives at a space settlement in the Earth-Sun’s Lagrange points or in the Asteroid belt. Even if the organ would survive the transport, it might arrive too late for the patient.

See also

3D-Printing, a key technology for humanizing space

Manifesto part 3

3D-printing and space colonization

Good Bye Post Stamps!

Th Dutch Postal Service (PostNL) has introduced a kind of post stamp: digital post stamps. In the Netherlands, people are sending fewer and fewer letters and so fewer people have post stamp in-house. So if you has to send a letter, you need to go a shop to buy an entire sheet of post stamps (the last time I have bought post stamps, has been five years ago or so). It’s not possible to buy single stamps.

However, PostNL has come with a solution. People can now download an app on their cell phone. With this app they can buy a code, instead of putting a stamp you write that code on your letter’s envelope. The code is scant at the post center and recognised as stamp. The code is made up of nine numbers and letters (which gives more than 10 billion combinations, so the chance to guess a valid code are nill).

For those who are able to read Dutch: http://nos.nl/artikel/509787-postzegel-niet-meer-nodig-met-app.html (If you cannot read Dutch, you can use Google Translate; although this wouldn’t give you a fully correct translation, however it’s mostly understandable).

Smartphones in space

A few days ago I read in my newspaper an article about the use of smart phones in satellites. According to the article, engineers of NASA during a brainstorm session were contemplating that an on board computer of the new generation of small satellites, the smart spheres, should be small, efficient with energy, should have integrated sensors and a usual operating system. The story goes that at a certain moment someone, while the engineers were checking their email on their cell phones, came with the suggestion that modern mobile phones just fit the requirements of said on board computer.

In order to make the smart spheres, of which three are now on board of the ISS, the engineers removed the GSM chip (there is no need that they should be able to make phone calls anyway). The smart ones selected by NASA are based on the android operating system of Google. Because this platform can easily be connected to external components, building a functional satellite is in reach of almost everyone. Another advantage of this approach is that there are tens of thousands people who are android app developers.

The question is whether this “break through” is beneficial for space colonization. The answer is simple: yes. Because smart phones are mass produced, they are relatively cheap. According to the article, the production of the phonestat 2 (a related project, also build around a smart phone computer), costed only 8,000 dollar. Further, this approach is fully in compliance of our policy of using off the shelve components as much as possible. The philosophy behind this policy, is that  by using off the shelve components space colonization will not be only cheaper, it will also be faster. This because we do not have to waste our time be developing every part we need, and why reinventing the wheel over and over again?

Modern smart phones, especially those with an open source  operating system (this also will help to lower costs), will help to make space colonization reality.

More information:

http://www.eetimes.com/electronics-news/4403998/NASA-to-launch-4-in-cube-comms-satellites