60 percent of the time, it works every time: the facts about pheromones

We hear a lot about pheromones these days. Scent sellers have been touting their powers of sexual attraction and libido amplification for years, but the science behind these claims is sketchy at best. Although pheromone production and detection by humans remains controversial, pheromones are used throughout the insect and vertebrate worlds, among crustaceans and even in plants, in exciting and often surprising ways.

What are pheromones?

Quiz: American motorcycle manufacturers (that no longer exist)

In the beginning, it was down to a bunch of backyard grease monkeys, factory owners and manufacturing magnates to kit-bash, jury-rig and cobble together the first motorized two-wheelers. Although few of them stayed in the game, their legends live on in the steel and chrome of today’s hogs, choppers and scoots. How well do you remember the now-defunct greats?

American motorcycle manufacturers (that no longer exist) quiz

Two parts heart and one part obsession

When you come right down to it, humans are lousy at swimming. It’s not our fault—it’s simply fluid dynamics at work: The more fluid we’re in, the less dynamic we are. That’s why it’s so amazing to watch a practiced swimmer glide through water. How do they do it? It’s more than physical fitness: Their technique is nearly flawless. In this article, I’ll show you how a few minor adjustments can pay big dividends in terms of speed, power and energy expenditure in the water.

How to increase your swimming speed

Cheaper to keep her: the real costs of auto maintenance

If you’re like me, every time your “check engine” light pops on, or some component starts emitting an odd noise (or smell), a tiny counter in your brain rolls forward like an odometer. Is this the Big One? Should you take your beloved beater off life support and shell out for a new ride instead?

Just how much is too much to spend on repairs? The answer might surprise you. Let’s start by looking at how much you should expect to pay for repairs over the lifetime of your car and then compare that to the cost of buying a new one.

How much does auto maintenance cost over time?

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