Sending a file from a server as a request to another server. Seems like a pretty common scenario. If the file is large, I consider it an anti-pattern most of the time, but there are cases when there is no better choice. Especially if the top management in your 'agile' team are just concerned about delivering a product to the client asap without considering the possible issues that would arise from not compressing such huge payloads, let alone allotting developers in the team the time to solve such problems. But this post isn't a rant about how several 'certified' practitioners of agile methods apply the opposite of the patterns they were supposed to have learnt. Without further ado, let's begin. Axios is a popular promise based HTTP client. When sending a file like a pdf as a request to another server which might expect the file in the files array of the request, you will also have to use FormData , which does not have native support in Node.js. Here's a s...
Transmitting a secret code over airborne radio waves like WiFi or Bluetooth means anyone can eavesdrop, making those transmissions vulnerable to hackers who can attempt to break the encrypted code. University of Washington computer scientists and electrical engineers have devised a way to send secure passwords through the human body — using benign, low-frequency transmissions generated by fingerprint sensors and touchpads on consumer devices. “Fingerprint sensors have so far been used as an input device. What is cool is that we’ve shown for the first time that fingerprint sensors can be re-purposed to send out information that is confined to the body,” said senior author Shyam Gollakota , UW assistant professor of computer science and engineering. The research team tested the technique on iPhone and other fingerprint sensors, as well as Lenovo laptop trackpads and the Adafruit capacitive touchpad. In tests with 10 different subjects, they were able to...
Erik Lucero et al. of the University of California-Santa Barbara built a quantum processor earlier this year to factorize the number 15 using a quantum algorithm (an algorithm that runs on a quantum computer) for integer factorization formulated by Peter Shor in 1994 . The team built a quantum circuit made of four superconducting qubits (bits which are a little bit of both 0 and 1 at the same time) on top of a substrate made of sapphire. These qubits are not exactly easy to implement in reality considering our present technological limitations. Here are some of my thoughts on the relevance of quantum computing. Moore's Law is dying Moore's law is the observation that the number of transistors in a dense integrated circuit doubles approximately every two years. Computers have been getting smaller and integrated circuits (ICs) more densely packed with transistors ever since the advent of the first IC-based computer. This is a modest explanation of Moore's Law. Since 2014,...
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