Which limit to exploration occurred when deep-keeled longships sailed shallow rivers?

💡 Explanation

Reduced maneuverability occurred because of the grounding caused by a large draft via **keel interference**; therefore, navigation was restricted rather than by matching sail directions or relative speeds, which may affect course but not prevent passage alone.

• Which mechanical phenomenon enabled early steam engines to automate repetitive tasks in factories?
• Which navigational error increases when a sextant's mirrors have offset?
• Which mechanical consequence would result from prolonged use of Roman ballista siege engines with improperly heat-treated torsion springs?
• Which consequence results when excessive salt spray accumulated on a sextant's mirrors during 18th-century celestial navigation?
• Which outcome occurs in a Boulton-Watt steam engine when the condenser cooling water supply is interrupted?
• Which risk increases when poorly-constructed stone terraces experience excessive rainfall during pre-Columbian maize cultivation?