peter Posted March 13 Share Posted March 13 9 hours ago, SimonTV said: Satellites are real but man has never been higher than 400km. Why Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 13 Share Posted March 13 (edited) 6 hours ago, peter said: Why The radiation and high temperatures of space kills anything that would die from high temperatures. We will send humanoid robots in to space centuries before we are capable of sending humans/animals/plants. In order to send humans we would need a spaceship that had suitable shielding, which would be very heavy. Edited March 13 by SimonTV 1 Quote Link to comment Share on other sites More sharing options...
peter Posted March 13 Share Posted March 13 (edited) 2 hours ago, SimonTV said: The radiation and high temperatures of space kills anything that would die from high temperatures. We will send humanoid robots in to space centuries before we are capable of sending humans/animals/plants. In order to send humans we would need a spaceship that had suitable shielding, which would be very heavy. I don't care what you believe but a little more substance to your answer would be good The temperature of space around earth is (10.17 degrees Celsius or 50.3 degrees Fahrenheit), and in deep space it is about 3 deg kelvin above absolute zero . Just a question, if the earths magnetosphere generally protects us from ionizing radiation,what protects the earth from burning up with regards to your high temperatures of space surrounding the earth This is about the radiation , https://theconversation.com/space-radiation-the-apollo-crews-were-extremely-lucky-120339, https://en.wikipedia.org/wiki/Van_Allen_radiation_belt Edited March 13 by peter Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 13 Share Posted March 13 (edited) 8 minutes ago, peter said: I don't care what you believe but a little more substance to your answer would be good The temperature of space around earth is (10.17 degrees Celsius or 50.3 degrees Fahrenheit), and in deep space it is about 3 deg kelvin above absolute zero . Just a question, if the earths magnetosphere generally protects us from ionizing radiation,what protects the earth from burning up with regards to your high temperatures of space surrounding the earth This is about the radiation ,just one of many https://theconversation.com/space-radiation-the-apollo-crews-were-extremely-lucky-120339, It must be the high pressure in the atmosphere, the gases protect the earths surface from higher temperatures. This is not my area of expertise so bear that in mind. If space is cold why does NASA say the temperature of the moon's surface is 250 degrees Fahrenheit (120° C, 400 K) to -208 degrees Fahrenheit (-130° C, 140 K). The sun in the vacuum of space... seems to me it would very intense heat not cold. Now if you travelled away from the sun it would get colder the further you went away and in the shade it would get cold because it is just a vacuum and that would not have residual heat off the surroundings or an atmosphere to retain the warm temperature. Edited March 13 by SimonTV Quote Link to comment Share on other sites More sharing options...
peter Posted March 13 Share Posted March 13 6 minutes ago, SimonTV said: If space is cold why does NASA say the temperature of the moon's surface is 250 degrees Fahrenheit (120° C, 400 K) to -208 degrees Fahrenheit (-130° C, 140 K) Good point ,I will have to get back to you on that Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 13 Share Posted March 13 4 minutes ago, peter said: Good point ,I will have to get back to you on that I can't wait to hear the official line on that one haha Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 13 Share Posted March 13 (edited) The other question is around whether in the vacuum of space there is constant velocity or whether it would require constant propulsion. The idea that you can fire a bullet in space and it will carry on forever vs it having a peak and slowing down eventually to where it will be going so slow it would be considered not moving. If there is constant velocity then a space cannon in space would be the most effective way to propel something in to space. But I suspect it will require constant propulsion because of the great distances. It is a funny one to think about. With NASA I think they took the idea that it was constant propulsion, they basically drifted to the moon using only the initial propulsion and then used basically side jets to adjust course. Edited March 13 by SimonTV Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 13 Share Posted March 13 I wonder how far away from the solar system a craft would have to get before the movement of the solar system in space would be causing a distance increase between the craft and the solar system. Quote Link to comment Share on other sites More sharing options...
Mr Crabtree Posted March 13 Share Posted March 13 On 6/26/2020 at 2:55 PM, alexa said: We all know it was faked, so why are we discussing it all again ? Ireland are going to send men to the sun to see if there are other life forms there! The interviewer for the British Bullshit Corporation said to their spokesman Paddy McGinty 'surely the rocket and the astronauts would be instantly incinerated by the Sun's extreme heat'? Paddy McGinty replied 'Oh well, we've thought of that, they'll be going at night'! 1 Quote Link to comment Share on other sites More sharing options...
peter Posted March 13 Share Posted March 13 (edited) 3 hours ago, SimonTV said: If space is cold why does NASA say the temperature of the moon's surface is 250 degrees Fahrenheit (120° C, 400 K) to -208 degrees Fahrenheit (-130° C, 140 K). Well I have thought about it and it seems to me the most obvious answer is we are comparing apples with oranges 1 I'm talking about the temperature of space immediately around the earth 2 Your talking about the surface temperature of the moon ,two entirely different things First off the areas of the moon that are in direct sunlight at any given time is for a period of 13 days straight and there is no atmosphere to speak of to dissipate the suns relentless intensity,therefore those surface areas exposed will heat up considerably and don't forget the compounding effect , once an area is heated it will continue to heat at a faster rate given the fact that the ambient surface temp is now higher eg ever walk on sand where the temp is so hot it will blister your feet how come the air temp is cooler ,under your scenario ones entire body would be covered in blisters and that's from direct sun light of not even 12 hours duration It is amazing the mindful clarity you can achieve just by taking the dog for a walk Edited March 14 by peter Quote Link to comment Share on other sites More sharing options...
peter Posted March 13 Share Posted March 13 2 hours ago, SimonTV said: The other question is around whether in the vacuum of space there is constant velocity or whether it would require constant propulsion. The idea that you can fire a bullet in space and it will carry on forever vs it having a peak and slowing down eventually to where it will be going so slow it would be considered not moving. Voyager 1 &2 are still going like the clappers and all they used was the effect of gravitation around the solar planets to increase their speed,so that might answer your question Quote Link to comment Share on other sites More sharing options...
peter Posted March 13 Share Posted March 13 (edited) 3 hours ago, SimonTV said: I can't wait to hear the official line on that one haha Sorry mostly I don't do official lines ,every thing I say is after I have given it some thought from different perspectives, I wish others would do the same with this and related threads. Edited March 14 by peter Quote Link to comment Share on other sites More sharing options...
peter Posted March 14 Share Posted March 14 1 hour ago, Mr Crabtree said: Ireland are going to send men to the sun to see if there are other life forms there! The interviewer for the British Bullshit Corporation said to their spokesman Paddy McGinty 'surely the rocket and the astronauts would be instantly incinerated by the Sun's extreme heat'? Paddy McGinty replied 'Oh well, we've thought of that, they'll be going at night'! Sorry I couldn't resist .How do you confuse an Irishman , Put half a dozen shovels against the wall and tell him to take his pick. and to all the wokers ,Irish or otherwise that I have just offended Quote Link to comment Share on other sites More sharing options...
alexa Posted March 14 Share Posted March 14 6 hours ago, Mr Crabtree said: Ireland are going to send men to the sun to see if there are other life forms there! The interviewer for the British Bullshit Corporation said to their spokesman Paddy McGinty 'surely the rocket and the astronauts would be instantly incinerated by the Sun's extreme heat'? Paddy McGinty replied 'Oh well, we've thought of that, they'll be going at night'! And did you know there is ice on the sun as in the winter the sun freezes over, I reckon this would be the best time for Astronots to go Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 14 Share Posted March 14 (edited) Here is one for peter. If the stage 3 propulsion fuel was so big, how did the tiny service module with its tiny propulsion fuel travel the same distance back from the moon with less fuel? Edited March 14 by SimonTV Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 14 Share Posted March 14 12 hours ago, peter said: Well I have thought about it and it seems to me the most obvious answer is we are comparing apples with oranges 1 I'm talking about the temperature of space immediately around the earth 2 Your talking about the surface temperature of the moon ,two entirely different things First off the areas of the moon that are in direct sunlight at any given time is for a period of 13 days straight and there is no atmosphere to speak of to dissipate the suns relentless intensity,therefore those surface areas exposed will heat up considerably and don't forget the compounding effect , once an area is heated it will continue to heat at a faster rate given the fact that the ambient surface temp is now higher eg ever walk on sand where the temp is so hot it will blister your feet how come the air temp is cooler ,under your scenario ones entire body would be covered in blisters and that's from direct sun light of not even 12 hours duration It is amazing the mindful clarity you can achieve just by taking the dog for a walk Even if I accept this, at some point on the 384000 km journey they would have been far enough from the earth that the atmosphere would not be affecting the temperature and they would be in a pure vacuum in the suns rays for days. Even if we accept the ridiculous notion it took them 3 days to travel 384000km, which is like 33k miles per hour haha. So you basic explanation is ambient surface heat in a vacuum. Interesting. Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 14 Share Posted March 14 12 hours ago, peter said: Voyager 1 &2 are still going like the clappers and all they used was the effect of gravitation around the solar planets to increase their speed,so that might answer your question If believe NASA's CGI photos yea i guess. Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 14 Share Posted March 14 12 hours ago, peter said: Sorry mostly I don't do official lines ,every thing I say is after I have given it some thought from different perspectives, I wish others would do the same with this and related threads. The way you said I will get back to you, I thought you might go ask reddit NASA experts or something.. Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 14 Share Posted March 14 (edited) 3 days to get there 22 hours on the surface 2.5 days in lunar orbit 8 days total journey time How many days did it take to get back on the service module fuel? 2.5 days? It was quicker to get back, they were going faster with the service module fuel compared to the stage 3 fuel. NASA says this is because they used the like orbited the moon 31 times to pick up speed and then used the earths gravity (i think) to get them back faster than it took them to get there. That means on their return journey they were going 40000 miles per hour. Then for reentry they used basically a fiber glass honeycomb special epoxy "shield" to protect the command module from burning up while entering the atmosphere at 40000 miles per hour. Edited March 14 by SimonTV Quote Link to comment Share on other sites More sharing options...
Bombadil Posted March 14 Share Posted March 14 1 hour ago, SimonTV said: 3 days to travel 384000km, which is like 33k miles per hour haha. Im not debating the subject, just correcting the maths. First method 10x faster. 384000km equates to 238606.538 miles 3 days = 72 hours 238606.538 miles / 72 hours = 3313.97r Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 14 Share Posted March 14 Just now, Bombadil said: Im not debating the subject, just correcting the maths. First method 10x faster. 384000km equates to 238606.538 miles 3 days = 72 hours 238606.538 miles / 72 hours = 3313.97r I used this calculator https://www.calculatorsoup.com/calculators/math/speed-distance-time-calculator.php 1 Quote Link to comment Share on other sites More sharing options...
Bombadil Posted March 14 Share Posted March 14 3 minutes ago, SimonTV said: I used this calculator https://www.calculatorsoup.com/calculators/math/speed-distance-time-calculator.php Cool. I will check it out. All I did was divide distance by time. Using your link I got the same answer Answer: speed = 3313.98 miles per hour = 3313.98 mi/h Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 14 Share Posted March 14 1 minute ago, Bombadil said: Cool. I will check it out. All I did was divide distance by time. I think you are right the calculator was failing due to converting KM to miles per hour 1 Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 14 Share Posted March 14 I think i might have an extra 0 by mistake. It says now 4194.26 miles per hour which is still wrong. 1 Quote Link to comment Share on other sites More sharing options...
SimonTV Posted March 14 Share Posted March 14 it says 6750 km/h per hour for the speed 3 days for 486000 km Quote Link to comment Share on other sites More sharing options...
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