How to merge in R

Hi. I’m Sharon Machlis at IDG, here with episode 38 of Do More With R: 3 ways to join data – base R, tidyverse, and data.table. Here, by joining data, I mean combining two data frames by one or more common columns. Not just tacking on additional rows. For this example I’m going to use […]

These Engineers Want to 3D Print an Entire Rocket in 60 Days

Stargate is the world’s largest metal 3D printer entirely built and designed in-house. The core of it includes three robot arms — one of which is doing printing — and the other two are doing post post-processing. This is a six degree of freedom industrial robot arm so it can move anywhere within about a […]

Tesla Cybertruck event in 5 minutes

– Welcome to the Cybertruck unveil. (crowd cheering) We’ve created an exoskeleton. (bangs) (laughs) (cheering) Nice. Now, hit the Cybertruck. (bangs) (crowd cheering) Yeah, what else can we do with this truck, let’s shoot it? That’s a nine millimeter bullet shot at the door. So, it’s ultra hard, cold rolled, stainless steel alloy that we’ve […]

Darpa N3 Project: Will We Pilot Drones Through The Brain?

There are a lot of advances in technology that are a bit hard to think about when you’re told them. So join us as we explore DARPA and the N3 Project. 9. What is the N3 Project? With a name like the “N3″ project, you’re likely thinking of some big kind of weapon, or some […]

Liquid Metal in a MacBook Pro: No More Throttling!

Why Elon Musk Wants to Implant an Electrical Wire in Your Brain

Elon Musk, the celebrity entrepreneur behind Tesla and SpaceX, finally unveiled what his company Neuralink has been up to for the past two years. Neuralink is developing a brain-machine interface, or BMI, with the goal of one day helping the paralyzed use robotic limbs or other devices. Musk even envisions a future where able-bodied people […]

WHAT IF electricity suddenly disappeared

Did you know that on 15 June 1752, Benjamin Franklin conducted his prominent experiment where he launched a kite into a storm cloud aiming to collect electricity. In a year Russian scientist Georg Richmann attempted to replicate the experiment but this attempt didn’t end well. He was killed by a ball lightning in the process. […]

What Does Liquid Metal Look like After 3 Months Inside a MacBook Pro?

Three months ago, despite my better judgment I put liquid metal inside my 2017 MacBook Pro. And by so doing improved the thermal performance of the laptop by over 15% from the stock thermal pace That’s a lot! And since then my computer has been both as quiet–and as cool–as a cucumber …yes cucumbers are […]

Do I need a Harmonic Balancer Crank Damper? – Jay’s Tech Tips #31 – Real Street Performance

Hi, I’m Jay from Real Street Performance. Today, we’re going to talk about harmonic balancers, and why an aftermarket one is better suited than your stock one. The harmonic balancer is a weighted pulley that mounts on the nose of the crankshaft to absorb the inherent vibration that happens when you’re running your engine. Your […]

Metal Foam Used to Protect the Military Could Be Used For So Much More

I’D I’D JUST I’D JUST LIKE I’D JUST LIKE TO I’D JUST LIKE TO POP I’D JUST LIKE TO POP HOME. I’D JUST LIKE TO POP HOME. YEAH I’D JUST LIKE TO POP HOME. YEAH BUT I’D JUST LIKE TO POP HOME. YEAH BUT IT I’D JUST LIKE TO POP HOME. YEAH BUT IT MADE […]