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Earlier quoted context omitted.
>344 single points of failure How can a system have more that one single point of failure?
If you're in a car being held above the ground by a chain, every single link is a potential single-point of failure.
Earlier quoted context omitted.
If you're in a car being held above the ground by a chain, every single link is a potential single-point of failure.
A system may be implemted as a set of cooperating microservices each one being a (single) point if failure of the entire system.
Earlier quoted context omitted.
Yup! If the universe's age were a single year, we're looking back to January 6th. Truly remarkable. :)
what prevents us from seeing back any further?
The universe's history: https://en.wikipedia.org/wiki/Chronology_of_the_universe#/me...
- We can see the cosmic microwave background (CMB), the earliest photons after the big bang still observable. This is ~14 minutes into Jan 1 if the whole age of the universe is a year. Satellites like the WMAP have done a great job of that.
- The dark ages that follow had few photon sources.
- JWST will be observing the earliest stars following that era.
There's a proposed radio telescope (that would have to be on the far side of the moon!) to observe neutral hydrogen photon emissions from the dark ages: https://en.wikipedia.org/wiki/Dark_Ages_Radio_Explorer
For those not up on the project, what are some of the earliest novel types of information we expect to receive from it?
One of the more interesting things that we'll get is data about what's in the atmosphere of exoplanets https://jwst.nasa.gov/content/science/origins.html Note that the next 5 months or so will consist of mirror cooling and calibration, so nothing until summer.
For some context around what makes this deployment so remarkable, watch this[0] video that talks about the engineering/building aspects of the James Webb [0] https://youtu.be/aICaAEXDJQQ
I wonder when it can start observing.
It'll take a few weeks after L2 insertion to cool the components and another 5 months to calibrate the instruments.
One of the big numbers that been thrown around is that JWST has 344 single points of failure in its mission. Now that deployment has been completed, is there somewhere that lists how many of those points we have passed?
https://twitter.com/SpcPlcyOnline/status/1479900221131964421
Earlier quoted context omitted.
Yup! If the universe's age were a single year, we're looking back to January 6th. Truly remarkable. :)
what prevents us from seeing back any further?
One of the big numbers that been thrown around is that JWST has 344 single points of failure in its mission. Now that deployment has been completed, is there somewhere that lists how many of those points we have passed?
>344 single points of failure How can a system have more that one single point of failure?
Earlier quoted context omitted.
>344 single points of failure How can a system have more that one single point of failure?
If you're in a car being held above the ground by a chain, every single link is a potential single-point of failure.
