Activity for James Jenkins
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #277200 |
Post edited: |
— | over 4 years ago |
| Edit | Post #277200 |
Post edited: |
— | over 4 years ago |
| Comment | Post #277102 |
@Enfield RE: ""How can an axial tilt exceed 90°?" once you get past 90° your reference changes. There is nothing making one side or the other the top. Imagine it cycles back and forth across the 90° point, is it the 'top' the 'top' you saw when you first looked, or is it the 'top' from the cycle be... (more) |
— | over 4 years ago |
| Edit | Post #277200 | Initial revision | — | over 4 years ago |
| Answer | — |
A: Magnet strong enough to rip the iron out of your body feasible? Yes and No. Yes: > Therefore, strong enough magnetic fields have the ability to deform and even break objects. When a magnetic field gets stronger than about 500,000 Gauss, objects get ripped to pieces by the intense forces. But No: > For this reason, scientists cannot build a machine th... (more) |
— | over 4 years ago |
| Edit | Post #252243 |
Post edited: make link local |
— | over 4 years ago |
| Answer | — |
A: How could a planet have one hemisphere way warmer than the other without the planet being tidally locked? The cold side would need to be a near desert, or in a few hundreds of years all the water would be trapped in the ice on the cold side. You would need some way to keep the moisture on the warm side. Several existing answers talk about raising the elevation on the cold side, to make it cold. If you... (more) |
— | over 5 years ago |
| Answer | — |
A: Why is transplanting a specific intact brain impossible if it is generally possible? It is an interface issue. Your technology has one step that converts the brain to computer data Reading out the personality and memories of a person from their brain requires that the brain is intact, for otherwise parts of the personality or memories would have been lost and the artificial copy... (more) |
— | over 5 years ago |
| Answer | — |
A: Guns in space with bullets that return? It is not practical, you would need to launch the bullet/projectile with enough fuel to: Stop its forward movement Start movement in reverse Slow down and stop when it got back. At each step it would need enough fuel/energy to carry the fuel/energy for the remaining steps. A person would not... (more) |
— | over 5 years ago |
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A: How to make an animal which can only breed for a certain number of generations? Of the existing answers I like this one by Aos Sidhe best, but I would probably do it slightly differently. Make your animal susceptible to a poison/virus which causes infertility. The poison should be airborne. Set 3 or 4 (for redundancy) meteorites moving towards you plant so they arrive in ... (more) |
— | over 5 years ago |
| Answer | — |
A: Can I use a trebuchet to launch satellites into space from a lunar colony? The two existing answers address difficulties in converting the energy imparted to the satellite by the trebuchet into an orbit. You have limited resources, but don't clarify what resource are available. You need also consider that a trebuchet stores potential energy generated by humans over a long... (more) |
— | over 6 years ago |
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A: Minimizing the Side Effects of Breathable Outer-Space This has been done in a smaller scale in The Integral Trees (1984) by Larry Niven The story occurs around the fictional neutron star Levoy's Star (abbreviated "Voy"). The gas giant Goldblatt's World (abbreviated "Gold") orbits this star just outside its Roche limit and therefore its gravity is in... (more) |
— | almost 7 years ago |
| Question | — |
Can there be a space age without petroleum (crude oil)? Crude Oil, is a term used to describe petroleum products harvested from geological formations beneath the Earth's surface. As a fuel they maybe called hydrocarbons, hydrocarbons can be found/created in sources other then crude oil but currently crude oil is the primary source on Earth. Would a spac... (more) |
— | over 7 years ago |
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A: How long will it take for the amount of living to exceed the dead population? Until about 6,000 years ago, the population of the living people in the world was 4, with none dead. Then Cain murdered Able, prior to the birth of Adam and Eve's third child Seth around 3900BC. Given the longer life span of people in the early days of the world, the living probably out numbered th... (more) |
— | almost 8 years ago |