-
Posts
2,598 -
Joined
Content Type
Profiles
Forums
Developer Articles
KSP2 Release Notes
Everything posted by James Kerman
-
Airbus, on behalf of ESA, has dispatched the first European Service Module for Orion to Kennedy Space Center.
-
If I understand both ideas correctly, these structures would be unable to maneuver to avoid orbital debris and would also need to be engineered to withstand high speed collisions.
-
I was quite pleased for the ISS when I found out NASA pays to deliver Sriracha sauce . I'd almost be willing to pay the same amount if my supply was threatened. https://www.thedailymeal.com/eat/there-s-bottle-sriracha-onboard-international-space-station
-
There are food standards laws in Australia that prevent this situation. An employer cannot penalize you for following these standards by law. You should look into the safe service of foods laws in Poland, Mate, as it should guide you in the right direction. I also hope you feel better - I enjoy black tea with lemon and honey when I become one of the infected.
-
NASA announced on Oct. 30, 2018, that Kepler has run out of propellant and is being retired within its current and safe orbit.
-
Welcome to the forum and don't worry, your English is fine.
-
The Hubble Space Telescopes Main Camera is Down
James Kerman replied to James Kerman's topic in Science & Spaceflight
The Hubble Space Telescope has resumed normal operations late Friday, Oct. 26, and completed its first science observations on Saturday, Oct. 27 at 2:10 AM EDT: -
"Once you get to Earth Kerbin orbit you are halfway to anywhere in the solar system" - Robert A. Heinlein. Welcome to the forum, @BMoscato. If you want any tips or advice on your explorations, I'm sure we'll all be happy to help.
-
I don't know if it's changed since I tried but I found it to be a little confusing. This diagram really helped me (click a few times to enlarge):
-
Welcome to the forum @unclebeer. I got the game a few years ago and gave up after a few hours due to insufficient brainpower, then I joined the forum and learned to play with the help of all the great members here.
-
Youtube is back up. Live launch blog is here in case of another outage: https://www.ulalaunch.com/missions/atlas-v-aehf-4
-
!!!! I Need Help With Something !!!!
James Kerman replied to Flightgames66's topic in KSP1 Gameplay Questions and Tutorials
G'day my fellow sand groper. This is how I go interplanetary (some of this information is duplicated up thread but I thought I'd write it up in point form): The kerbal subway map is a good source of information on how much dV you will need to get to any planet or moon. Duna is a great place to start. According to the map you need 5090dv to orbit Duna from the surface of kerbin (I'd add 10% for safety and orbital manouvers). This assumes you follow standard procedures: 1. Get to low Kerbin orbit. 2. Depart low Kerbin orbit at the correct phase angle - this means leaving at a time when it is most efficient for a Hoffman maneuver to your destination. 3. Once you have an intercepting course, warp time to the half way point between Kerbin and Duna. Perform a course adjustment: Create a maneuver node 10 or 20 minutes ahead of your vessel - just place it without changing anything. Then click on Duna and select focus view - this will change your view to the destination and should show your plotted course in the sphere of influence of your destination. Rotate your view until you can see both the path through the SOI and the node you just created and you can now use that node to plan and execute a burn that will bring you close to your intended orbit or even into an atmosphere for aerobraking. The course adjustment is usually very cheap on Dv and you get savings by doing your capture burn nearer your destination planet/moon (benefiting from the Oberth effect). If you want to RV and dock with a station at Duna then you should make sure that you get close to your target altitude and orbiting in the same direction. 4. (Your OP reads a little ambiguously with regards to docking so I'll add this, just in case) Once you are in orbit (I start with a highly elliptical orbit as it makes the next step cheaper in Dv), match inclination with your target (the slower you are the less Dv it takes so always use the furthest node from the planet or moon). Adjust Ap and Pe until the orbits of both vessels intercept (try to make a slightly higher orbit if your target is behind you or a lower orbit if it's ahead). Wait until you get fairly close to an intercept and then adjust with a maneuver node until you get really close (I try to get within 300-400m) and with a low speed relative to your target (I like it to be no more than 5 or 6m/s at this stage). High speed intercepts are possible but will use more monoprop and fray your nerves. Once you get 400-500m away switch all your attention to the nav ball, making sure its in target mode. Depending on where your docking point is and if you are faster or slower than your target, you need to match up either the prograde or retrograde marker to the target and slow down to .2 or .3m/s to dock. 5. Profit!- 8 replies
-
- help
- rendezvous
-
(and 1 more)
Tagged with:
-
For Questions That Don't Merit Their Own Thread
James Kerman replied to Skyler4856's topic in Science & Spaceflight
@Diche Bach Another longevity option that might add an interesting sub plot could be genetic editing or modification like CRISPR technology. While this is still nascent tech at the moment the potential is there to extend lifetimes and prepare your colonists for the conditions they will encounter at their destination. Of course this could all go horribly wrong™. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4343198/ https://www.genome.gov/27569222/genome-editing/ https://ghr.nlm.nih.gov/primer/genomicresearch/genomeediting -
That's a good thing. If your gmail account is not showing unauthorized activity you should be OK - the vast majority of these attacks rely on "social engineering" to get a foothold into your digital life. If you have clicked any links within these suspect emails you should also scan your machine with a good antivirus and antimalware program like https://www.malwarebytes.com/lp/sem/au/ just to be sure. Another thing you could do is contact your phone service provider (I'm assuming your 2 factor identification uses your phone as the secondary) and make sure there have been no attempts to request a sim swap. I can't program a microwave but I am a long time reader of the blog https://krebsonsecurity.com/. Brian Krebs is a very well regarded internet security reporter and always includes best practice information about these issues.
-
You could try using this service to see if your account has been compromised in a data breach: https://haveibeenpwned.com/ Apparently Gmail records the last 10 logins along with your current session in "Last account activity”. It shows the location, IP, method, and time when your Gmail was last accessed so you can check to see if there is unusual activity and also allows you to sign out any other running sessions before you change your password. You should also check the email forwarding page to see if your email is being forwarded to any other addresses.
-
Yeah, mostly they go to junk mail but the odd one gets through to my inbox. Most are from "the google team or gmail team" but the addresses are random if I hover over the sender: It's slowed down to a trickle since I started blocking them and I have not seen any "confirmation email" of a new account setup so I assume it's a spam campaign.
-
For the last month or so I have been getting bombarded with both gmail notifications (although the addresses do not originate from google and I don't have a gmail account) and social media messages from an undisclosed site (i.e. account profiles being unlocked for me and "people" requesting hook ups) even though this forum is the only social media I participate in. I have not opened any of these emails and blocked them from my account as I believe them to either be phishing attempts or containing malicious code/attachments with no ill effects.
-
Welcome to the forum, @zherdev. What is this Dres you speak of? (It's a long running joke in the forum that Dres does not exist and anything you are doing to make it a more interesting destination would be much appreciated)
-
I'd like to complain about describing 26C as a heatwave - it's known in Perth as "a lovely day".
-
Ok - I used close to your orbital parameters (158x45km) and a vessel I call the "Mike Tyson". I used the spaceplane method (nose up) on the way down and EVA'd at 10000m and 800m/s (nav ball in surface mode). Before ejecting G-force was negligible but Jeb fell unconscious for a second or 2 on EVA so I couldn't test chute deployment in KO conditions. This vessel is likely draggier than a standard space plane so I have to assume you were coming in faster. Edit: So I built a Mk1 pod, Hammer booster and 2 canards (in line with the mk1 ladder) and I'm seeing some strange behavior on EVA at 650m/s and above. I get spaghettification, KO and Jeb disappears.
-
I just ran a few more tests using a MK1 pod above a hammer SRB, festooned with canards and I can't knock Jeb out. Unfortunately the G meter does not display on EVA. Do you remember what your altitude and speed was?
-
It might be if you are playing with "kerbal G-force limits" enabled in advanced options. Maybe Jeb was KO when you attempted to fire the chute.
-
I just ran a few tests in sandbox with no results; the chute worked as advertised. The only other thing I can think of is if you were descending too fast for your chute to "safely deploy" however this would mean a fall at a velocity that Jeb would be unlikely to survive. Perhaps @bewing may be able to assist you?