Dealmaster: Amazon discounts almost its entire product lineup for Prime Day 2019

Dealmaster: Amazon discounts almost its entire product lineup for Prime Day 2019

Enlarge (credit: Valentina Palladino)

Prime Day is nearly upon us, and Amazon has already pushed out a bunch of deals on its own devices. Like Prime Days past, Amazon has discounted most of its devices and services in the hopes that more people will take the plunge and try Echo speakers or other Alexa-enabled devices, Kindle e-readers, Fire TV devices, and more. As with all Prime Day deals, the discounts are only available to members of Amazon’s Prime service.

Fire TVs

Speaking of Fire TVs, Amazon has heavily discounted many of those streaming devices, including the Fire TV Stick and the Fire TV Stick 4K. For Prime Day, the Fire TV Stick with an Alexa Remote for $14.99 (down from $39.99) or a Fire TV Stick 4K with an Alexa Remote for $24.99 (down from $49.99). Fire TV Sticks are the most affordable Alexa-enabled streaming devices from Amazon,

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DEAL: US Unlocked Galaxy S10, S10+, and S10e All at Least $100 Off at Amazon

DEAL: Unlocked Galaxy S10 Line is $200-$500 Off Right Now


Pre-Prime Day deal on Samsung’s Galaxy S10.

Amazon Prime Day 2019 kicks of tomorrow morning, but if you have a few minutes to do some shopping today, the chances of you finding already-live or early deals are pretty good. For example, the entire Samsung Galaxy S10 family just went on sale at up to $500 off.

The current deal is a straight $200 off Galaxy S10, Galaxy S10+, or Galaxy S10e base models, which are those with the lowest amounts of storage. If you decide you want more storage (and a bigger discount), that’s where the discount to $300 off happens.

An example, the Galaxy S10e 128GB now starts at $549.99 ($200 off), but the 256GB model is $300 off, bringing it’s price to $549.99 too. That’s a free upgrade in storage! Another example is the Galaxy S10 with 128GB storage at $699 ($200 off) or the 512GB at $849.99 … Read the rest

Alternative theory of gravity makes a nearly testable prediction

Alternative theory of gravity makes a nearly testable prediction

Enlarge / Galaxy clusters generated by the Universe simulator IllustrisTNG. (credit: TNG Collaboration)

From our current perspective, the Universe seems to be dominated by two things we find frustratingly difficult to understand. One of these is dark matter, which describes the fact that everything from galaxies on up behaves as if it has more mass than we can detect. While that has spawned extensive searches for particles that could account for the visual discrepancy, it’s also triggered the development of alternative theories of gravity, ones that can replace relativity while accounting for the discrepancies in apparent mass.

So far, these proposals have fallen well short of replacing general relativity. And they say nothing about the other big mystery, dark energy, which appears to be accelerating the expansion of the Universe. Instead, researchers have developed an entirely separate class of theories that could modify gravity in a way that eliminates

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