## MacBook Air (Early 2015, El Capitan) Detecting Headphones in Audio Jack When None are Connected

Rather than listing the Internal Speakers as an output device, my MBA only shows “Headphones” in “Headphone Port.” Restarting the computer did nothing, and resetting the PRAM seemingly did nothing.

## Connected and homogeneous $T_2$-space not homeomorphic to a subset of $\mathbb{R}^n$

What is an example of an connected and homogeneous $$T_2$$-space $$(X,\tau)$$ with $$|X|=2^{\aleph_0}$$ such that for no $$n\in\mathbb{R}$$ the space $$(X,\tau)$$ is homeomorphic to a subspace of $$\mathbb{R}^n$$?