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#1676 Re: Human missions » Boeing Starliner OFT-2 » 2024-05-10 19:16:53
Nasa contractor warns against Boeing space launch due to the ‘risk of a disaster’
ValveTech, a contractor that supplies Nasa with valve components for the Starliner aircraft, warned against the imminent launch on 17 May.
“As a valued Nasa partner and as valve experts, we strongly urge them not to attempt a second launch due to the risk of a disaster occurring on the launchpad,” ValveTech president Erin Faville said in a press release.“According to media reports, a buzzing sound indicating the leaking valve was noticed by someone walking by the Starliner minutes before launch. This sound could indicate that the valve has passed its lifecycle,” Ms Faville wrote.
She urged Nasa to “re-double safety checks and re-examine safety protocols to make sure the Starliner is safe before something catastrophic happens to the astronauts and to the people on the ground,” Ms Faville added.
#1678 Re: Not So Free Chat » Fixing Americas car industry » 2024-05-10 16:53:34
went to look for specifications and found
Capacity: 2 people
Load volume: 160 litres or (352 lbs)
Propulsion: electric motor with a rated output of 4 kW
Top speed: 45 km/h
I think I saw 8Kwhr to 12kwhr battery capacity so you can only get 2 to 3 hrs at max speed depending on battery.
At charging 0.25 cents a kwhr to top a battery off each nights seems reasonable at most 4 dollars each refill or cheaper if you have solar recharging.
#1679 Re: Home improvements » Heat Pump - Heat Pumps » 2024-05-10 16:44:14
Due to temperatures approaching freezing and boiling under the extremes of a given region.
It requires food grade if it's going to heat drinking water.
#1680 Re: Meta New Mars » Housekeeping » 2024-05-10 16:41:24
Sort of like Smilies are coded in the
<p><code>:)</code> and <code>=)</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/smile.png" width="15" height="15" alt=":)" /></samp></p>
<p><code>:|</code> and <code>=|</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/neutral.png" width="15" height="15" alt=":|" /></samp></p>
<p><code>:(</code> and <code>=(</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/sad.png" width="15" height="15" alt=":(" /></samp></p>
<p><code>:D</code> and <code>=D</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/big_smile.png" width="15" height="15" alt=":D" /></samp></p>
<p><code>:o</code> and <code>:O</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/yikes.png" width="15" height="15" alt=":o" /></samp></p>
<p><code>;)</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/wink.png" width="15" height="15" alt=";)" /></samp></p>
<p><code>:/</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/hmm.png" width="15" height="15" alt=":/" /></samp></p>
<p><code>:P</code> and <code>:p</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/tongue.png" width="15" height="15" alt=":P" /></samp></p>
<p><code>:lol:</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/lol.png" width="15" height="15" alt=":lol:" /></samp></p>
<p><code>:mad:</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/mad.png" width="15" height="15" alt=":mad:" /></samp></p>
<p><code>:rolleyes:</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/roll.png" width="15" height="15" alt=":rolleyes:" /></samp></p>
<p><code>:cool:</code> <span>produces</span> <samp><img src="https://newmars.com/forums/img/smilies/cool.png" width="15" height="15" alt=":cool:" /></samp></p>
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#1681 Re: Human missions » Why Artemis is “better” than Apollo. » 2024-05-10 16:05:15
If Nasa is going to use a capsule for the moon, I think it should look at modifying the starliner at least long enough to do the same test of the moon loop to see how well it would stad up as we are not going in a starship either for the timetable that Nasa has in its plans.
#1682 Re: Human missions » NASA may alter Artemis III to have no Starship landings. » 2024-05-09 19:36:14
The heat shield issue was greater than I had thought.
NASA watchdog report: 100+ cracks on heat shield biggest threat to human moon mission
https://oig.nasa.gov/wp-content/uploads … 24-011.pdf
reentry speeds coming in from a lunar trajectory reach nearly 25,000 mph, which is about 40% faster than what astronauts face when returning from low-Earth orbit in SpaceX’s Crew Dragon. The heat shield has to endure temperatures close to 5,000 degrees Fahrenheit.
#1683 Re: Home improvements » Heat Pump - Heat Pumps » 2024-05-09 18:25:24
Ya it could be clearer
https://www.greenbuildingadvisor.com/ar … s-of-thumb
#1684 Re: Meta New Mars » Housekeeping » 2024-05-09 18:22:50
sounds good and it might give others an option from making it a business for you and kbd512 possibly.
#1685 Re: Meta New Mars » Housekeeping » 2024-05-09 17:41:47
yes, it's an info section that did not have an entry form place to make changes in the o p t i o n s form.
Since 2002 the php was stepped and then to 2005 phpbb with the fluxbb in 2015. the wayback machine could help in defining how many versions.
#1686 Re: Home improvements » Heat Pump - Heat Pumps » 2024-05-09 17:39:19
same as an artesian pr drilled well.
#1688 Re: Science, Technology, and Astronomy » Synthetic or Natural Fuel Produced using Solar Power » 2024-05-09 17:30:41
#1690 Re: Science, Technology, and Astronomy » The Science of Climate Change » 2024-05-09 17:26:21
The world's largest fans designed to suck carbon from the air are up and running in Iceland
Climeworks' direct-air-capture plant can remove up to 36,000 metric tons of carbon from the air a year.
#1691 Re: Planetary transportation » Trains on Mars - Could a rail system provide martian need » 2024-05-09 17:22:38
NASA Unveils Futuristic Mission with Moon Rail Tracks & Martian Transit Systems to Mars
look familar as it resembles GW's
#1692 Re: Not So Free Chat » Fixing Americas car industry » 2024-05-09 17:19:25
Can This Adorable Micro-EV For Drivers On A Budget Succeed In The US?
EV, range is an estimated 60 to 90 miles from its 8 to 12 kWh batteries and charging time is between two and four hours.
#1693 Re: Meta New Mars » Housekeeping » 2024-05-08 18:49:14
That message only appears when you are not logged in. As that is the only time the register button is available to click on.
I also changed the recruiting to a link in the announcement for the recruiting topic with the usual html code.
#1694 Re: Meta New Mars » Housekeeping » 2024-05-08 18:23:49
The register.php is a hard coded message that is not changeable.
I have changed the announcement message and hope that meets with you for what you suggested.
Have changed 5 pages of members to the New InActive status. Still need to change the admin message block on each still and need to set the banned first to unbanned that can be before switching them too InActive.
#1695 Re: Home improvements » Home Solar System to Achieve Energy Usage Offset » 2024-05-06 17:24:10
#1696 Re: Interplanetary transportation » Sierra Nevada Dream Chaser under construction in Colorado » 2024-05-06 17:21:31
The BE-4 rocket engines that will power this Vulcan are in final acceptance testing at Blue Origin's facilities in West Texas, the officials said. The Vulcan core stage and Centaur upper stage are also in final assembly in ULA's main factory in Decatur, Alabama. The hardware readiness should be capable of supporting an April launch.
The second Vulcan launch will carry the Dream Chaser spacecraft into orbit for Sierra Space. The winged vehicle will fly a cargo mission that carries supplies to the International Space Station for NASA. After more than a decade of development, Dream Chaser is undergoing final tests. However, there remain some questions about when it will be ready for its debut launch.
Sierra Space Dream Chaser® Spaceplane Successfully Completes First Phase of Pre-Flight Testing
#1698 Re: Science, Technology, and Astronomy » Trough Solar Collector- Design- Construction- Operation- Maintenance » 2024-05-05 16:27:51
Waste heat as a source
of course, day to day we can get it from
Of course, heat sources can go into the evaporator which is a how we are going to produce power after picking the pressures, fluids and even more. The location of the evaporator is also where a store of heat could remain so that we can produce power over a larger period of time.
#1699 Re: Not So Free Chat » Oil, Peak Oil, etc. » 2024-05-05 15:29:21
Researchers analyzed 1 million measurements taken by aircraft flying over oil and gas sites across the country. They determined that about 3% of the natural gas produced in the U.S. is escaping into the atmosphere.
That's a staggering 6.2 million tons of methane leaking every hour during the daytime. This wasted gas is worth around $1 billion per year. But the true cost is even higher when you consider the damage to our atmosphere.
The study covered over half of all American oil wells and nearly a third of the nation's total gas production and delivery infrastructure. While more research is needed to calculate a precise national average, the 3% leak rate was consistent across the six regions examined.
