@Jordan_W_Taylor Rockets with autogenous pressurization still require a significant amount of helium to spin-up the turbine. And starships still use COPVs for their landing tank (which may contain helium)
@Faktantarkast10@cremieuxrecueil@ghostobs3126991@palladiummag The actual time of the world's lead production surpassed that of the Romans was much later, because geological activities such as volcanoes can affect the deposition of lead in ice cores.
@eterevsky@cremieuxrecueil@palladiummag From a macro perspective, various parameters of the Western world did not recover to Roman-era levels until the 16th-18th centuries. Judging from various indicators and central government revenue, Roman Empire was the most powerful regime before the Industrial Revolution.
@jotairl@NASASpaceflight The space shuttle tiles were glued together instead of clipped on, and this special glue dried very quickly, so workers habitually spat into the glue buckets to maintain its adhesion, resulting in severely uneven bonding strength between different tiles. Totally mess.
@XFreeze@wingod Gigabay is actually less than half the size of VAB (46.5 million cubic feet vs. 130 million cubic feet), but gigabay does have higher stacking efficiency and more stacking stations theoretically.
@vptharp@XFreeze The volume of VAB is 129,428,000 ft3 (eighth-largest building in the world btw), and the volume of a gigabay is 46.5 million. Therefore, VAB is nearly three times larger than a gigabay.