1Ask HN: How will we be getting people and payloads into orbit in 50 years?Reusable rockets? Space elevator? Something else?show more3Exo_Tartarus8y ago1
2Ask HN: Which open mathematical problems block immediate technical progress?Are there any problems in math which, if solved, would immediately impact technology? Doesn't matter which type of technology.show more4Exo_Tartarus8y ago5
3Scale Invariance as an Alternative to Dark Matter and Dark Energy (opens in new tab)(sciencedaily.com)14Exo_Tartarus8y ago6
4Drinking 3-4 Cups of Coffee Is “More Likely to Benefit Health Than to Harm It” (opens in new tab)(sciencedaily.com)160Exo_Tartarus8y ago152
