Mental_Cut8290

Mental_Cut8290 t1_jec73wh wrote

Tortoise has a head start, but moves slow.

Achilles will overtake and win despite starting behind.

The problem is an infinite series.

Achilles will run, for some amount of time, and eventually reach the tortoise's starting point. But the tortoise has also advanced during that time and Achilles is still behind.

The race continues a lesser amount of time and Achilles reaches the tortoise's last checkpoint, but again the tortoise has moved on.

EVERY time Achilles reaches where the tortoise was, the tortoise has moved a little bit farther. This will be true for infinite points.

How can Achilles reach the infinite number of checkpoints and ever pass the tortoise if the tortoise is always a little bit further away for infinite points?

3

Mental_Cut8290 t1_j9q4vcn wrote

Honestly a fair question since all helmets are designed for hits to the head.

They all protect for a specific type of hit to the head. Simplifying your example to a bicycle helmet vs. hockey helmet: A bike helmet is likely to be hit directly from the front, it is lightweight for ease of riding, and it will sacrifice itself to absorb as much impact as possible, making it single use only. Hockey helmets are designed for multiple hits, and protection from a projectile. H hockey puck might punch a hole through a bike helmet.

3

Mental_Cut8290 t1_j21oone wrote

There are two forms of food-poisoning: too many pathogens that then grow in your body and make you sick out both ends while your immune system fights the growth, and toxins from spoilage that will have a more immediate rejection from the body.

The ones that grow in you have pretty good resistance to acids. (All are slightly different) And toxins just are, so acid won't necessarily break them down.

2